There needs to be a complaint thread for you people that keep complaining about 2.1 not being released.
However, if you look at the screenshot there are several things that stand out. The new update1 to 2.1 looks real. Could that be fake? Sure. But then look at the Gmail icon. That could be faked as well, but whoever photoshopped the image took a lot of time with the icon sets to fake us out. Look at the battery icon as well. If this wasn't fully charged it would raise some speculation if this was a real screenshot. The USB icon appears, which would make one think the phone is charging. Typical of a developer, developing applications, to have this 2.1 running on their phone with their phone attached to their developing PC.
Looks like we will just have to wait a little longer to get this 2.1 update that everyone is talking about.