I don't know if the deadline is over or this is the last day, but here is my entry anyway. I finished it in a Pentium2 we have here in the army jff. Couldn't post it yesterday because only today I am out of the camp and heading home.
I rewrote from scratch an algorithm I had done in the past in Quickbasic to draw a random land. It used a simple algorithm I know as randomwalk, where there is equal possibility given for a pixel to move up, down, left, right and draw itself again. But here, the drawing was lake adding a small value to the color in the background, like shadebobs, and up limit 255, and an RGB pallete for 0 to 255 colors, from the sea to the white snow. There are also few parameters there, the random walk starts from a point and may teleport back to the starting point after some runs again (the central point of the island) and for few times. According to runs per return back and how many times this repeats, the islands are smaller or bigger.
Then, I decided to map the land to a sphere, like it's the earth and make with some low pass plasma some fuzzy space backround and put some pixel stars. Normally I wanted to improove this parts for blobs for brighter stars and sun, and more stuff, maybe another plannet with bump for moon or so, but time was not enough and I decided to stop here.
Each time you run the programm, a diferrent land is generated.