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Is it possible to launch system/third party app using an NDEFLaunchApp record to get the URI and by using LaunchUriAsync without NFC Tags?

So I have spent the whole night looking like a zombie in the morning trying to figure out how the OS handles an NFC tap for an NDEFLaunchApp Record and I have known the following.
I'm pretty sure that there is a workaround which lets you launch a system app / third party app (if you know the product Id / GUID) from your app. As there are apps in the Windows Phone Store which I have somehow figured out what I've been trying to.
I have come up with the following code:
NdefLaunchAppRecord appLaunchRecord = new NdefLaunchAppRecord();
appLaunchRecord.AddPlatformAppId("WindowsPhone", "{App GUID}");
appLaunchRecord.Arguments = "_default";
// Creating a new NdefMessage from the above record.
var message = new NdefMessage { appLaunchRecord };
// Getting the record from the message that we just created
foreach (NdefLaunchAppRecord record in message)
{
var specializedType = record.CheckSpecializedType(false);
if (specializedType == typeof(NdefLaunchAppRecord))
{
var x = String.Join(" ", record.Payload);
// Getting the payload by GetString gets a formatted Uri with args
string result = System.Text.Encoding.UTF8.GetString(record.Payload, 0, record.Payload.Length);
// result = "\0\fWindowsPhone&{5B04B775-356B-4AA0-AAF8-6491FFEA5630}\0\b_default";
// result = "(null)(form feed)WindowsPhone&{App GUID}(null)(backspace)_default
// So this will be sent to the OS and I believe the OS will then launch the specified app by an unknown protocol
// like xxx://result
// and the app will be launched?
// So is it then possible to somehow call the following:
await Windows.System.Launcher.LaunchUriAsync(new Uri("OUR MAGIC RESULT?", UriKind.RelativeOrAbsolute));
If anyone has / can figure out a way for this, it would be a REAL Service to the WP Community as developers are restricted by Microsoft to open certain settings / apps which are actually needed by those apps. For instance (speech settings, audio settings, about settings, alarms, region settings, date+time);
APPS that possibly have a workaround:
Music Hub Tile (Launches the old Music+Videos Hub)
http://www.windowsphone.com/en-gb/store/app/music-hub-tile/3faa2f9e-6b8d-440a-bb60-5dd76a5baec1
Tile for Bing Vision
http://www.windowsphone.com/en-gb/store/app/tile-for-bing-vision/05894022-e18c-40a4-a6cc-992383aa7ee8

There are reserved uri schemes for bing and zune.
See: http://msdn.microsoft.com/en-us/library/windows/apps/jj207065(v=vs.105).aspx
Those two apps propably use these and have found some undocumented use of the scheme.
If there is an uri scheme that launches any app by guid from within your app, it is hidden well.
Currently you can only launch apps that registered for an uri scheme or file association.

Show Viber, Whatsup in Windows Phone 8.1 share contract

Hi I am developing an app that shares a picture in via Share contract in Windows Phone 8.1. My code is
DataTransferManager dataTransferManager = DataTransferManager.GetForCurrentView();
dataTransferManager.DataRequested += new TypedEventHandler<DataTransferManager, DataRequestedEventArgs>(this.DataRequested);
and
private async void DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
{
DataRequest request = args.Request;
request.Data.Properties.Title = "Unscramble this";
request.Data.Properties.Description = "";
request.Data.SetText(string.Format("Scrambled word is {0} and clue is {1}. Help me to unscramble this \r\n(via Unscramble Plus for Windows Phone)",scrambledString.ToUpper(),selectedMeanings.ToUpper()));
DataRequestDeferral deferral = request.GetDeferral();
// Make sure we always call Complete on the deferral.
try
{
//StorageFile logoFile = await Package.Current.InstalledLocation.GetFileAsync("Assets\\Logo.png");
StorageFile imagefile = await KnownFolders.PicturesLibrary.GetFileAsync("pic.png");
List<IStorageItem> storageItems = new List<IStorageItem>();
storageItems.Add(imagefile);
request.Data.SetStorageItems(storageItems);
}
finally
{
deferral.Complete();
}
}
where this show the share contract as below (including only Facebook, Mail apps)
But if you see in Sendtiment app for Windows Phone (http://www.windowsphone.com/en-us/store/app/sendtiment-cards/9c389cc5-5c00-4f8e-8bd4-e6fbb5040c24) it shows many apps like Viber, Whatsapp, Twitter.
How to get these Viber, Whatsapp like apps in my app's share contract?
Edit: (Addition) When I remove
request.Data.SetText(string.Format("Scrambled word is {0} and clue is {1}. \r\n(via Unscramble Plus for Windows Phone)",scrambledString.ToUpper(),selectedMeanings.ToUpper())); line, this shows OneDrive.

http://channel9.msdn.com/Series/Building-Apps-for-Windows-Phone-8-1/10
this might help, also make sure what kind of data you are sharing, as the app will show only if the Content type matches,
for example whatsapp will show only if you are sharing Video,Images but NOT phone contact.

if you use a Universal-App, Whatsapp will not shown. WhatsApp is a WP8.1 Silverlight-App.
This is the Problem!

How to get user info using C# FacebookSDK

I'm trying to get user info using the FacebookSDK, but its not working.
This is what i try to do:
var fb = new FacebookClient("my_access_code");
dynamic result = fb.Get("me");
var name = result.name;
MessageBox.Show("Hi " + name);
This is not working, because fb hase no get method. But every tutorial and code snippets i looked at are using get.
Is this code deprecated? If this is whats the new method of getting info?

So, as we established in the comments - for Windows Phone 8 there are async calls that should be used instead of the old Get call. That's why you're not seeing the Get call, but the GetTaskAsync call. For this simple example, you use it the same way
dynamic result = await fb.GetTaskAsync("me");
var name = result.name;
MessageBox.Show("Hi " + name);
Other examples may vary. More about async calls with Facebook C# can be found in the official documentation, but that's not exactly for the Windows Phone 8, but Windows Phone 7 which used a different async pattern. Still, it may be helpful to you. There's a link to a supposedly more updated documentation for async/await calls but for some reason I'm seeing a 'Page not found' error.

try this instead
var fb = new FacebookClient("my_access_code");
dynamic result = await fb.GetTaskAsync("/me");
var name = result.name;
MessageBox.Show("Hi " + name);

Getting unique device ID in VS2012 Windows 8 Store Apps

I am new to Windows 8 Store Apps, and need to fetch device ID in one of my XAML project. And this device ID should be unique. I searched the internet and came across 2 different ways.
First way in C# code,
private string GetHardwareId()
{
var token = HardwareIdentification.GetPackageSpecificToken(null);
var hardwareId = token.Id;
var dataReader = Windows.Storage.Streams.DataReader.FromBuffer(hardwareId);
byte[] bytes = new byte[hardwareId.Length];
dataReader.ReadBytes(bytes);
return BitConverter.ToString(bytes);
}
Second way in C# code,
var easClientDeviceInformation = new Windows.Security.ExchangeActiveSyncProvisioning.EasClientDeviceInformation()
GUID deviceId = easClientDeviceInformation.Id;
The first one gives in bits format whereas second one gives GUID. I am not getting any idea that which is correct one.
I referred this blog
And MSDN link too.
Can any one guide me regarding which can be used as Device ID?

I had same confusion, but finally used HardwareIdentification.GetPackageSpecificToken.
Because I find no information about uniqueness of EasClientDeviceInformation.ID
However, you can't use ID returned by HardwareIdentification.GetPackageSpecificToken as it is, because it depends upon many hardware components. And if any one of them changed, a different id will be returned.
There is more information at this link.

In VS2013, Microsoft uses the following method to retrieve the unique "installation id" or "device id" for the current device when uploading a channel URI retrieved from the Microsoft Push Notification Server (MPNS) to implement Push Notification:
var token = Windows.System.Profile.HardwareIdentification.GetPackageSpecificToken(null);
string installationId = Windows.Security.Cryptography.CryptographicBuffer.EncodeToBase64String(token.Id);

Distinguishing between phone and tablet browsers

I know this question as been beaten to death, but I don't want anything super complicated here.
We have a companion app with our site that is only compatible with 7 and 10-inch tablets. We need to only alert users on those devices about our app. Problem is, I can't go by resolution. My Galaxy S3 has a 1280 x 720 screen, but is obviously not a tablet. I also can't for the life of me find out a way to get the physical size of the screen. The only solution I have come up with is detecting whether the device can make calls with MobileCapabilities.CanInitiateVoiceCall. Unfortuantely, by boss isn't happy with that solution.
So... How can I distinguish between a phone and a tablet in my web app (Server or client side)?
UPDATE: So far it seems that the best approach for Android is something from a blog post by the Android team: All Android phones use "Mobile" in the UserAgent string, so checking for "Mobile" *and "Android" will tell you if it's a phone, while just "Android" should be a tablet. iOS devices should be just as simple--checking for "iPhone" vs "iPad" seems to have worked so far.

I know this is a little late, but I was looking for the same thing.
Wurfl has wat you want. You can implement it easily and and even have an api you can query.
For ASP.NET application first you must place the one-off initialization.
public class Global : HttpApplication
{
public const String WurflDataFilePath = "~/App_Data/wurfl.zip";
private void Application_Start(Object sender, EventArgs e)
{
var wurflDataFile = HttpContext.Current.Server.MapPath(WurflDataFilePath);
var configurer = new InMemoryConfigurer().MainFile(wurflDataFile);
var manager = WURFLManagerBuilder.Build(configurer);
HttpContext.Current.Cache[WurflManagerCacheKey] = manager;
}
}
And then use it like this.
var device = WURFLManagerBuilder.Instance.GetDeviceForRequest(userAgent);
var isTablet = device.GetCapability("is_tablet");
var isSmartphone = device.GetCapability("is_smartphone");
For more info check ASP.NET implementation
Hope this helps anyone else looking for this.

You can try to do a user agent detection and search for the keywrords, for example, all Non tablet devices have a "Mobile Safari" key words on their user agent.