This thing won't really be worth buying for at least 6+ months at the soonest. Hopefully by Christmas-time it'll have built up a large enough library of decent software (optimized XBMC, Ouya-flavor of RetroArch, some more exclusives) to justify the purchase.
Right now I'm just sideloading random shit to see what works or, more accurately, how broken most stuff is. I may wind up installing the ODK, getting a dev account, and spending some time trying to smack together functional UIs for some of this stuff, but that's about the limit on what I could do on my own.
Fuck it, though. Final Fantasy III on my TV instead of a DS screen. For the love of god, I hope Dimensions gets ported...but if IV made the jump? DICK = HARD.