I sure would love it if I could tether my unlimited AT&T grandfathered iPhone data plan to my WIFI iPad, but that sure isn't happening, and I'm not about to give up my unlimited iPhone date because that's the thing I use most when I'm out. I use my iPad at home for surfing, also at seminars where there is free WIFI anyway, and at work, I don't need the internet since I have it on my work computer, so I am using my iPad for other productivity tasks. So for me, I am not messing with what works. Even so, it still would be fun to be able to use my iPad at work to browse during lunch, but I'll live!!