Here is a little hack that can make your Kindle screensaver useful again with items from your Google Calender and some more interesting stuff.
This hack changes the wallpaper to an image that includes the weather, date, and your Google Calendar information. It takes a bit of work to set up a server and jailbreak the Kindle, but the end result is a far more useful screensaver than just an image. says Life Hacker.
To set this up, read the instructions on the Readme file on the Github page here.