I bow to your advanced code-knowledge wizardry---and have no idea what you are saying. (hence the bow to hide my "What the...." facial expression)
Checking WoTC website for job offers, they tend to ask for .NET/C# knowledge. Their website is done in ASP.NET (another .NET/C# technology) and their character creator for 4e was a WPF/Silverlight app (again .NET/C# technology).
The "problem" of .NET/C# is that it's a Microsoft technology that runs on Windows only (Windows, Windows Store, Windows Phone), but there is a company called Xamarin (founded by Miguel de Icaza, who created the Mono project, a port of .NET/C# for Linux/Mac) that sells a product to run .NET/C# over Android/iOS.
In the last months, Microsoft and Xamarin have announced a very deep partnership which allows a developer to write programs on their Windows machine using Microsoft tools, and thanks to Xamarin that code will run on Windows, Android, Mac... Which is an incredibly productive thing
The only thing you have to code for each different platform is the UI: every platform has a different UI language and design guidelines, it's not the same the Metro style of Windows Phone apps than the UI style of iPhone or Android. But all the inside logic of the apps can be written just once and shared using Xamarin.
I have no idea if WotC will follow this route, but given that they seem to have the in-house technical knowledge for it I wouldn't be surprised if they end doing something like this (which would be great IMHO

). They are also based in WA, like Microsoft, and there are a lot of Microsoft partners in the area which could be outsourced for this work if they needed/wanted.
I hope it's a little clearer!