This one may interest bloggers; esp those who love to calculate how much their blog is making them. AdSensor is a desktop gadget for Windows 7 & Windows Vista that can display your AdSense earnings right on your desktop.
AdSensor Desktop Gadget
You no longer need to login to your Google AdSense account to check your earning all the time. The Google AdSense API only reports on AdSense for Content data. AdSense for Search, Feeds and Mobile are not included. The AdSense Web page may report different values than the gadget depending on what AdSense services you’re using.
Download and set it up and that’s its, your precious earnings will be in front of your eyes on the desktop, all the time!
You can check it out at blueonionsoftware.com.