I don't actually get how anyone can be excited by this. By demanding a free-to-play aspect in all titles, they've already alienated "mainstream" developers and anyone intending to spend more than six figures on developing a game for it. It'll be no different to iOS, where the most successful games are ripped off of Miniclip or Newgrounds and cost 69p. Either that or they'll be heavily reliant on micro-transactions, essentially "pay to win". I simply don't see the point in getting hyped. Sure, it'll make a nice emulator machine, but are you really going to shell out a hundred dollars just to emulate stuff your PC can emulate many times better?
Ouya will be no different to plugging your phone into your TV or something, which hardly compares to plugging an actual console or a PC into it. It's a complete waste of time.