Update: And it's back, with no noticeable changes. Nonetheless, we'll be sure to let you know if and when Google announces something Market-related - stay tuned!
 

We don't want to jump to conclusions here, but it's February 2nd - the day of Google's Honeycomb- and "Android ecosystem"-related event, and the Market is currently experiencing downtime. It makes perfect sense given the rumors we've been hearing about an upcoming update to the Market, though it could, of course, be nothing more than scheduled maintenance. We hope we'll find out exactly what this is about later today - whatever it is, we'll keep you updated (pun intended)!

via Android Central