Update: Google now says everything's back to normal. "The problem experienced by some users with T-Mobile data connections has been resolved. If you are still having trouble establishing a connection please power down your Nexus One, then turn it back on."

We're getting word from our forums that Nexus One users on T-Mobile are having data problems this morning. Here's the message many of you are seeing:

"To connect to the internet with the device you are using, you'll need a webConnect data plan. Please call Customer Care at 1-800-937-8997 to make sure you have the correct webConnect data plan "

That's no good, and T-Mo's support forums point to a national outage. And as you can imagine, support centers are getting hammered this morning (and likely will get hammered again when this is all over).

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Do note that it looks like there are no issues if you're running it unlocked on AT&T (other than being stuck on EDGE, of course), so it's time to look T-Mo squarely in the eye. We'll keep you apprised. [T-Mobile]

Update: Want to see what everybody's saying? Here are some resources: