On: TweetSaver.com Launched - Backup, Tag, Search and Share your tweets

Maybe I'm missing something but how is this different than Twitter's favorite system? Just more organized?

Edit: Plus they make you pay?

searching more than 6 days back in time and tagging are two things you cannot do on twitter that you can do on tweetsaver.

Personally it's worth the money to me to be able to search for old tweets.