Because PSP2 would confuse some people with PS2

Xbox One is a fine name. The idea is it is supposed to incorporate all of the things you want connected to your TV. Thus, One device.

The problem with the Xbox 3 name is that 360 starts with 3 which causes a lot of the same confusion. If they had only called the 360 the Xbox 2....

Yesterday when I was at work my manager asked me if I had "heard about the new Xbox: the Xbox One." This isn't a guy who goes to Kotaku. He doesn't keep up on the latest gaming news, rumors, or releases. He plays Madden. He wasn't confused by it.

They need to save infinity for Xbox 8. So they can turn the 8 on it's side for infinity.