I’ve made a background image for my pda, consisting of a tree in snow: 


It didn’t take long to find the original image (take a look at http://www.kennyrogers.biz/old_website/photography2.html for the original), but it did take a long time to fine-tune it to pda standards. It had to be ‘cut down’ to size (240 x 320), and the sky had to be made a single color because my pda seems to have its own color management and will condense any blurring to 2 or 3 areas of the same color. I also removed the bushes underneath the right side of the tree to balance the image a bit more.