Sony, Xbox, and Nintendo are definitely out of the question. Their license fees range from $15,000 to $30,000. When they license, the license is granted to a developer. The Game Creators is a Developer, but then if people in the community wanted to make apps for consoles, that's hundreds of more developers. You also need to prove your worth to the console companies by producing something that did well on a more open market, such as PC.
Somebody did make a Dark Basic Console once. They learned some assembly, put some Microsoft components in there (DirectX of course), and made a little logo appear just like when you turn on your home console. It runs computers games, DB games especially, all it needs it an AUTORUN file. It was pretty cool.
Console games are also making their way to PC more often now.
Juvenile Industries
Current Project: KillZone(FPS)
Soon to come:An rts, and a snowball fight game