This showed up onPicasa last night, been playin' with it a little, looks pretty cool, and it's free. Played with this one that I posted here a month or two ago.
I've heard of it, but have never seen the program. I use GIMP, which is also free, and I don't do a lot of fancy stuff with my shots, so it works for me. Photoshop is a bit too expensive for my wallet, lol. Thanks for posting the link and I'll check it out.