And according to the photo-tips newsletter site Photojojo this is why we should like it:
It's web-based, so you don't have to download any software or use up space on your hard drive. You can use photos already on the web, too: Flickr, Facebook and Picasa all work.
There are 40+ free tutorials that range from beginner to advanced, so you can learn how to use all them fancy tools.
There's a very good free version, as well as a souped-up hotrod version that's actually worth paying for.
Find a demonstration here: