Wow. Very, very cool device. Apple's innovation continues to blow away their competition by leaps and bounds, and you can bet that the iPhone will be one of, if not the, hottest tech gadget(s) of 2007. A must have though? Well, no, not from a business productivity standpoint. But with the introduction of Mac OS X in the mobile device marketplace I'm quite certain Windows, Palm, and RIM are not feeling all warm and fuzzy.