For those who care: a first glimpse of Episode III.
Officially, it's only available to paying Starwars.com customers, but I fear Lucas has underestimated the power of the Web Site.
http://www.dtheatre.com/read.php?sid=2791Mirror #3 worked best for me (just 'save target as'). I't a ltille over 10 MB. I have no sound card on this freaking PC so I'll have to wait for the full experience till tonight. It's 1,5 minutes or so, and includes mostly existing material but the 30 new seconds you do get are kinda...cool.