Bump wants everyone to use their technology to transfer data from one smartphone to another. With that goal in mind, they’ve released an API and held a developer contest to recognize creative apps that use Bump. Winning entries include CheckOut, which transfers gift cards; CloudNote, which swaps digital Post-It notes; and SocialFuse, which allows you to connect with someone on Twitter and LinkedIn. In each case, users simply tap their phones together to transfer the appropriate data.
The current API works for iPhones only, but an Android version is in the works.