Lantus, where is the source for your USB mouse code? Since I didn't have it, I based it only on the source available from SourceForge. Mail me (firstname.lastname@example.org) with the code, I'll merge it in and do another release later today or tomorrow (depending on when you get back to me!).
I don't know what's happened to r0n, I've e-mailed him but had no response. I'll happily keep it updated and add new things as and when I have time.
I agree that the UI needs work - but is that really the biggest missing feature? Maybe I'll work on that next.
Not sure that it's the worst emu available for the XBox, it works well on everything that I want to run...