To run MAME on Windows RT, must ricompilarer all the code and it is not a simple task..
But you could just create a modern UX to run on all modern tablet interface with X86,
Mame Core and UX for Modern Desktop finger friendly
Loading User Information from Channel 9
Something went wrong getting user information from Channel 9
Loading User Information from MSDN
Something went wrong getting user information from MSDN
Loading Visual Studio Achievements
Something went wrong getting the Visual Studio Achievements
@bondsbw:Upload rom to Onedrive or normal Hard disk .
Like NesBox http://apps.microsoft.com/windows/it-it/app/nesbox/0df1a311-588e-4a37-b995-c294dfd1e990 (Nes, Megadrive , Super Nes)
For Windowsphone we have Playstation emulator and work perfect http://www.windowsphone.com/it-it/store/app/emipsx/4192af5d-86d3-454d-ac9c-bce977e64b82
Super nintendo Emulator work perfect http://www.windowsphone.com/it-it/store/app/snes8x/ed3cc816-1ab0-418a-9bb8-11505804f6b4
PLS reply to Unreal Dev.