Anyways: Currently WP7 has two emulators (at least that I know of) and they are for the NES and classic Gameboy. Unfortunately, we are missing some really great ones like Gameboy Advance (I still have all my Pokemon games from it), SNES, and N64. You may not be aware, but the Zune HD actually had a partially working Gameboy Advance emulator. The Zune HD possess far lower specs then new WP7 devices, even the first generation devices. The original iPhone 3GS can also emulate Gameboy Advance games and its specs are also a lot lower then current WP7 devices.
I'm curious as to why this hasn't been worked on (at least talked about). I understand that code could be a problem, but the Zune HD I'm sure had similar problems on a far lesser known platform with even less developers and still had some form of Gameboy Advance emulator. Also, native code of some kind is achievable now, correct?
Anyways, I'm just curious if anyone else would like to see this/know if something is in the works. If it is of any help, here is the link to the Zune HD Gameboy Advance emualtor; they even have the source code listed: http://code.google.com/p/visual-boy-zune/