There are updates available for two free graphics packages I use on Windows: Picasa (a photo organizer), and The GIMP (the GNU Image Manipulation Program).
Picasa 2 is out, and it has a bunch of new features. Since being acquired by Google, it is free, so why not run it? And no, I don't know what Google plans to do with it. It has a Blogger button, but buying Picasa seems a long way for Google to go to get a little Blogger integration.