I've just posted an update to the Twitter Public Timeline Screensaver - by popular request you can now add your account (actually as many accounts as you like) to display on the screensaver as well as the public timeline. It's also now possible to change the colors for the screensaver including setting a custom color scheme for tweets from each account.
Catfood Folower has also been updated recently. This is a tool to automatically follow and unfollow people on Twitter based on rules that you set. It's useful for company accounts where you want to follow everyone who follows you, and also for finding and removing friends that no longer follow you back.