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I agree, the ipad is a game changer. I got mine the first week they came out. It is limited in many regards - it's not a phone, it can't print, can't easily network. That said, it embodies some of the latest and greatest technology has for us. As a Realtor, I use mine daily to search and share home information. I've used the gps when my other one couldn't get a signal, and there is a corkboard app that I use as a portfolio, it displays my digital tearbook.
I carry mine everywhere. I have the 3g 64 version, which, if you'r going to make this type of investment, you might as well get the 3g. Steve Jobs said getting an ipad without 3g is like buying a car without wheels.
Internet anywhere. I love it.