1-Hour Photo

Instant gratification — that's what a big part of the mobile experience is all about. Instant access to the Internet. Instant access to your friends. Etc. Which is what makes 1-Hour Photo so novel. This free app lets you shoot photos as soon as you open it, but with one big caveat — you can't see the results for an hour, as the app forces you to stay in the moment and applies a smooth black and white film emulation. It might not make sense, but it's also free, so you have little excuse to not give it a try.