say you have a google acct; and there's a gmail address assigned to it.
anyway to change that?

in the account set up it says;
Your new address: *************gmail.com
Why can't I change my address?

but when you click on the "Why can't I change my address," you get:
We're sorry, but the information you've requested cannot be found. Please try searching or browsing the Help Center.

..a broken link.

http://mail.google.com/support/bin/answer.py?answer=44281&hl=en
  

I want to know why too... In fact, I don't like my actual address, and because of the fusion with youtube it says I have another account (if I try to login to gmail with that account, it redirects me to my first address account). And I can't receive mails to that "secondary" account.
It's a mess!