Enhance your Pocket PC's flexibility with Spb Mobile Shell! With a today screen and skins, world time and weather forecasts, photo speed dial and more, Spb Mobile Shell provides a great, simple way to access programs, files, and information on your Pocket PC
PocketCandy is not a screensaver itself, but allows your PocketPC to run screensavers after a specific period of no user interaction, just like your desktop computer
iWindowsMobile Communication Suite - Get the perfect launcher Winterface, threaded messages with SMS-Chat, smooth contacts management with FunContact 3x NEW, the most user-friendly keyboard ZoomBoard, and Weather updates for only $24.95... thanks to Communication Suite
TimePiece is a skinnable analog clock for PocketPC's! The background that the clock is displayed on and the face that's used on the clock is configurable, as well as the settings for the clock's hands. Currently there are no digital clock settings, but there are plans in the future to include digital clock and date functionality.
You can create skins for TimePiece
PopClock - this application is a clock which works like a screen-saver. While the app is working, if you leave your mobile phone be for a few minutes, the clock appear in your screen. Please touch the clock, and it will be hidden at once. Time from disappearing of the clock to the next display can be set by pushing the option button
HAL9000 for Pocket PC - A novel screen-saver-esque application where HAL 9000 periodically speaks.
"The 9000 series is the most reliable computer ever made."
"I'm sorry, I'm afraid I can't do that."
"Daisy, Daisy, give me your answer do
BlackMe is a tool that turns the screen off while you don't need it.
You can use it while logging gps data (for example with WMMiniGPS), when you connect your device to the desktop to sync/recharge it, when you're listening to music with an mp3 player, etc...The best method to use this program is to associate a button to it (through Settings->Buttons)