This is brilliant! I guess the next step of photo sharing is to it more FUN. I assume that when I tab on my phone, the client feels the shake and uploads the photo to Bump, and at the same time the browser gets the space keystroke from the keyboard so it would send the location and time to server, which would then match the photo that was uploaded with the best location and time. Matching/guessing the timestamp here is more important than location here I guess.