This is about PhoneDog.com vs. Noah Kravitz. That's the battle over the Twitter account Kravitz used while working for PhoneDog.com. When he left the company, he changed the name of the account and kept tweeting. This is seen as a landmark battle over who owns a twitter account but I say it raises questions about what are those followers worth.
The Value of Twitter Followers
There is a battle between a blogger and his former boss over who owns his Twitter account