The Nexaria BC2 router is a rather ugly 802.11b/g/n router that will allow tethering on the iPhone 3, 3GS and 4. Unfortunately, you must plug the thing into an outlet to power it up, providing somewhat limited use. Typical use case for tethering is using your phone as a modem and connecting to your Mac on the go. Here, you are chained to your desk. But if you're willing to uglify your work space, the router will grab that bandwidth from your iPhone (using your data allotment from AT&T) and beam it around your room via Wi-Fi for the low price of $189. Ideal? Hardly, but it works for what it does.