I think a great addition to Minecraft would be if Notch added the ability to upload your own images to use as paintings in the game. (Not that the default pictures aren't good enough). I think it would help add a good new level of personalization to each player's home, and there are definitely some good screen shots and actual pictures I would love to have in my house for humor and decoration. If anyone thinks this is a good idea, definitely help me with this suggestion to get Notch's attention.
-phoenixlk27