I'm working on creating a very simplistic mod of Origins. One that will have no home navigation other than games, as I don't have any need for the other parts of XBMC (at least not the XBOX version). Settings and File Manager are accessed through the guide, so you'll need the custom keymap.xml that Dom created. I've changed up a few things here and there, a few new animations, and removed some viewtypes I don't use. I should have something to share in a few days. Until then, here is where I am now:
Once I do release the mod, the emulator icons will come along with it

All thanks go to Dom DXecutioner for this fantastic skin, as otherwise I wouldn't be doing this.