Most telling of all is the fact that the Twitter Tracker also has his own Twitter feed (Tw1tterTracker) and has amassed over 17,000 followers.
TwitPic allows you to take pictures to your phone and instantly link to them in your Twitter feed.
If your entire Twitter feed is full of retweets and offers no personal comments or insight, people will avoid following you.
If you have an image you'd like to use for a tile background as opposed to a single image behind your Twitter feed and other information, open it in Photoshop.
Keep it to 120 to 225 pixels wide, though, or your Twitter feed may cover up part of your text.