Yeah, I've looked into this a couple times. I would really love to see this happen. In my (biased) opinion this would be much more meaningful/useful than some of the others that exist.

I don't know that anyone is actually trying to make this happen, but I've come across a lot of people who think it's a great idea.

For anyone who's interested, here is some info from ICANN describing the application process and status of recent TLD applications:

http://www.icann.org/en/tlds/ http://www.icann.org/en/topics/new-gtld-program.htm

It would be sweet if Google or someone big tried to get this done...