I could see this being an issue if you were tethered (if they allow it), but otherwise, it's a nonfactor. I'm on my iPhone constantly and barely ever hit half that. And at least it's right there on the features page. Not some hidden limit <i>ahem</i> Comcast.
Good to see them being up front about it. I've been a long time T-Mobile customer, they have always been fair.<p>The data plan pricing is right too, a good amount cheaper than the iPhone (especially when you factor in the included messaging).
Just checked my usage with a Pearl. About 35mb. I do next to no browsing with images on. But what happens once I start watching videos and have 3G in NYC with the G1?<p>Going to wait for the G2.