Bump - the connection between 2 of you

Bump makes sharing with people as simple as bumping two phones together. Just pick what you want to send, then hold your phones and gently bump hands with another Bump user. And now, you can message with your friends who aren't near you -- just add them as a friend inside of Bump and start messaging immediately -- it's kind of like a long-distance "virtual bump".

After you've bumped or added a friend on the Bump system, you can send messages anytime, complete with instant push notifications.

Share photos, music, messages, locations, contacts, calendar events; become friends on Facebook, Twitter, and LinkedIn; compare mutual friends, and more.

Bump works cross-platform between iPhone, iPad, iPod, and many other phones.

And no, you do not need Bluetooth for this application.

Download link: http://itunes.apple.com/us/app/bump/id305479724?mt=8