Mobile Eggbert is the planned game created from the decompiled C# source code of Speedy Blupi for Windows Phone.
Maybe ILSpy tool will be used for the decompilation.
An alternative of XNA Game Framework is planned to be used too.
The main reason is, that Windows Phone is a discontinued mobile operating system (developed by Microsoft Mobile for smart phones).
Current status: No work has started yet on "Mobile Eggbert".