Mr Nash
square pies = communism
It's not nearly as informative as the recent 1Up Psychonauts piece, but I gaurantee it's 10X more entertaining. 
http://www.armchairempire.com/Interviews/psychonauts-tim-schafer.htm
http://www.armchairempire.com/Interviews/psychonauts-tim-schafer.htm
Will there be any difference between the Xbox, PC and PS2 versions?
Yes, each one will be better than the others. Other than that, they will all be exactly the same.
How is the design process organized at Double Fine? Is there a lot of input from everyone on the team?
Well, let?s not say ?organized.? But here is how it happens. I work with designers, like Erik Robson, and we hide out in a meeting room, until people find us, and then tell us what they think. So we have to change meeting rooms repeatedly to stop that from happening. Later, we put the ideas we have into documents, and then hide them on the network, but people find those too. Eventually, despite all your best efforts, what you end up with is a collaborative work of art made by 40 or so people. And that?s pretty cool. Especially if you then take credit for it all, like I do.