Dont mean to be rude, but you found it, as in someone lost it? If thats the case, I would contact RIM, and/or Vodaphone I'm assuming, and get it returned to the proper owner. I know if I lost mine, I'd be frantic! Plus there is a possibility that it's on a BES, and has been "killed"
Just my $.02, but I'd make sure you return it. Might even get a reward!