Ruh-roh. AT&T's wireless data service seems to be down in a major way, at least on the eastern half of the country. We're seeing problems with both Edge and 3G from places such as Boston, New York and St. Louis. It's primarily iPhone users pinging us on this, and in AT&T's forums, but we're guessing it's not just limited to them. How is it looking for you?

[Thanks to everyone who sent this in]

Update: We've just spoken to AT&T and they've told us they're "aware of the reports." We'll keep our ear to the ground and update as soon as we have more.

Update 2: AT&T now tells us that it all came down to a "routing issue" in the Northeast that was patched up at 11:56AM this morning. For what it's worth, BlackBerry and text services were apparently unaffected -- but we doubt that's much consolation to iPhone users in withdrawl.