AppleInsider has a report from AT&T stating that tethering will not work between an iPad and iPhone (over either Bluetooth or USB/Dock). Thus, if the iPhone won't work as a WiFi hotspot then you may not be able to use the iPhone's 3G data plan to provide mobile service to an iPad. AT&T is pointing their finger at Apple, but this could be a real blow to all those iPhone users who were considering using their iPhone to provide 3G network access to their new iPads. Frankly, I was considering doing that since I don't use anything near 2GB/month and if I could tether my iPad to my iPhone I could just pay the extra $20 tethering fee rather than pay $25 extra to get the 3G plan for my iPad 3G (and, I could also tether to my MacBook which would be another advantage to the $20 tethering plan on the iPhone). Of course, those with the WiFi-only version of the iPad (and an iPhone) may really be getting a kick in the teeth.