Well hallelujah. Now we can finally catch up with Japan and send Visa payments with a cellphone. Wave your iPhone 3G or 3GS (or someday an iPhone HD) like a magic wand in front of a special terminal, and the payment is sent.
But there's a weird catch. The system works with an iPhone app called Visa payWave, but that can't be installed on the iPhone's hard drive — it requires installation on an external memory card inside a clunky iPhone case.
Way to go, Visa. Dopes. Trials start this summer, but we'd suggest starting over. Come back when you've figured out a better way to do this. Sigh.