Nothing, I hand regged iMegadeth.com while Dave Mustang (my favourite metal frontman) was putting his Guitar 'Master Class' Toots together for Apple, and they didn't contact me for even a lousy $100. Mr Mustang called his project something else when I would have just handed the name over so it could have been called iMegadeth.com instead of what ever it was.. Celebrity Cyber Squating will yield nothing, I've tried.
regards.matt
I tried the same trick with iSmurfs.com when I was starting out being a hobby domainer. Again, the cold shoulder.