I thought about it, thought about it hard when I got the N900 to review. But after walking my voice plan down a notch, and I'm technically off contract, I'm coming out a lil higher than would with T-Mobile.

Some of you considering unlimited data plans might want to take a look at this piece; the person is using Symbian, but tends to get around the unlimited data plan by smartly using WiFi. Such a case could easily apply with the N900 regardless of carrier. And it keeps things quite cheap.