I'm looking at getting an iPad2 3G, and was curious if I'd be able to swap the sim between my iPhone 3GS and my iPad to get Data on whichever device I needed. Yes, I'm aware of MyWi, TetherMi, etc, but since I rarely use the iPhone (it's prepaid mainly for when I cant get Sprint Reception) and I'll likely use the iPad a lot more often, if I could swap the sim without any hassle from ATT...