Here is a quote that is floating around the internet concerning the iPad. I think it pretty well sums up a lot of people's feelings on the subject. I'm not sure who the original author was.
Just yesterday I was looking at my iPhone thinking "Hmmm, I wish this thing didn't fit in my pocket." Then I looked over to my netbook and couldn't help but feel it would benefit from losing the keyboard and being made of 50% glass. Finally apple gives me what I wish.
I'm sure a better analogy / quote will surface. You can't use the iPad as a phone, or can you?
i wonder if you wil be able to run google voice or other voip app on it (apple can't argue it might confuse the user by changing the ui since the ipad is not a phone). with the $30 data plan, you've got yourself a low monthly fee VOIP cellphone. now, to find a holster big enough hehe