Found this a couple years ago but was too impatient to learn it's interface, but now that i'm wanting to give pixel art another go I went searching for apps that have a non-standard interface like many of the demotoos at pouet.net.  I found this one and think it might be just what the doctor ordered.  Anyone try this one? I really like how it goes fullscreen.

http://website.lineone.net/%7Eangusmarthur/bpaint.htm