Today Lifehacker has detailed instructions on how to send money via PayPal with your cell phone… mobile payments 101 for the uninitiated. So far the comments include an endorsement of rival TextPayMe and a pitch for smartcard payments.
Ps. If you haven't checked out Lifehacker yet, it's worth a visit. One of my favorite blogs. Lots of cool tricks, productivity tips, and useful info for your inner geek.