Wallpaper (507 programs)

Pros: High quality image. Barack's dressed up nicely for the occasion.

Cons: Don't expect fireworks.

Pros: Beautiful images. Several different categories. Wallpapers can be changed automatically or manually.

Cons: Quite unstable and buggy.

Pros: Beautiful, high-resolution images. 12 viewpoints of the Earth. Continuously updates at regular intervals.

Cons: No custom resolution support. Unable to save images.