When tipjoy launched, Mark Mayhew ( <a href="http://markmayhew.com/" rel="nofollow">http://markmayhew.com/</a> ) claimed <a href="http://twitter.com/tipjoy" rel="nofollow">http://twitter.com/tipjoy</a> for us, and gave me the keys. It was really nice.
If you're using twitter to engage people and not just push content then your name shouldnt matter much as it will show up in your @replies...<p>If, like most corporations, you still see twitter as a push tool then yeah you're screwed because people wont be able to type your brand name and find you.<p>Twitter seems to be pretty good about turning over trademarks though