What do you do?

Apple’s first reset tip is to press and hold the Home button for about six seconds to quit any application that might have locked up your iPhone.

If that doesn’t work, trying pressing and holding both Home and On/Off; after about 10 seconds the Apple logo will appear. (This reboot trick takes a little big longer than the iPod equivalent—holding down Select and Menu usually restarts your music player after four seconds.)

All you have to do is open the application and create a contact card to share then you just choose what information that you want to trade then simply bump hands together. At the moment, this application only allows transfer of contact information. Read more about Bump iPhone application Here.Read Bump technology Here

See how the Bump works