Xbox 720? Wii Number Twos? PlayStation 4? The industry's predilection for trying to guess what the next round of consoles will be is never ending. And while we're only now starting to really enjoy the Xbox 360, Wii and PlayStation 3 – with developers finally getting used to each machine's architecture – it's actually a very interesting time to examine just how these companies might move forwards in an industry that is growing bigger and bigger every year.