Friend Book on iPhone

The new features with Friend Book on the iPhone make me want to download the program.  Two phones that have the program can shake simulatneously and their personal contact information will be exchanged between phones.  It works without connecting the phones, more like a handshake with the phones to exchange the information without having to type in the information.  I think it will make getting friend’s numbers a lot easier because I don’t like pulling out my phone and typing in the information just a simple phone shake makes it easier and more fun.