I own an iPhone 3G and I really wish that my carrier (Rogers) would let me get rid of all phone-related services. I don't want or need them. Internet in my pocket is really the important part. And if I want to talk, send my voice through the data channels!
Same with TV; I don't own one, but I wish the cable companies would kill a few shitty cable TV channels and use that bandwidth for Internet data instead.
Hmm ... maybe you should get an iPod Touch with a MiFi. Or, of course, perhaps Apple will eventually make an iPod Touch with a sim card like the iPad 3G. If it did that with the same data price plans, that would be really great.
Same with TV; I don't own one, but I wish the cable companies would kill a few shitty cable TV channels and use that bandwidth for Internet data instead.