I suggest a port of Fenix, its sort of like a runtime library slash game engine. Theres a port already for the dreamcast & gp32, so it should also be suitable to be compiled for the xbox.
More games will be playable on the xbox version of fenix then of the other ported systems, also people will be able to compile there own homebrew games from the range of games it has, unless its not as do-able on the xbox as it is on the dreamcast/gp32 cause of the use of the illegal xdk.
Please note, this is not a request/demand this is just a suggestion to consider when you have the free time to spare on coding. Thank you in advance for all your work in the xbox-scene & on any future projects.
FENIX 
