Twitter has been adding more and more functionality to the site, while still trying to maintain the core 140-character format. The latest
gimmick feature is a sort of highlight reel for your Twitter profile.
It's best just to see it in action, and Twitter has already created several of these #FollowMe videos, for NBA players and the like. But you can create one for your profile easily enough.
Once you're done, you'll not only be able to share it with your followers to let them know just how awesome and popular you are, but even add it to your Twitter bio, so no one will miss it.