Picasa3 has made its way out with some very nice UI improvements. Probably one of the most notable is the new default image viewer when you open an image file. It is really clean and looks great and grays out the rest of your screen and only shows the image. There have also been a few application changes but for the most part the application is still the same. I use this everyday as my screen saver as its a super easy way to setup rotating pictures on your computer.
Picasa is still king when it comes to managing a crapload of pictures. Download the new version here
