Zune HD logo hanging out on it right now. Unfortunately, since the site appears to be registered via a proxy, there's really no way of telling if its legit or just someone with money to burn. That said, we have every reason to believe that the Zune HD is the real deal, and this very well could be another sign that something magical is about to happen. Keep your eyes peeled, but keep a grain of salt handy.
Update: Thanks commenters! According to this post on Zunited, the Zune HD site is registered to someone named Zac Altman -- a "Zune guru." They have those?
[Thanks to everyone who sent this in]