Microsoft’s talked about the Xbox360 at their Q3 earnings conference. They released some stats;

• 1.7 million Xbox 360 consoles shipped, bringing sales to date to 3.2 million consoles with 1.8 million in North America, 1.1 million in Europe and 300,000 in the rest of the world.
• Despite a relatively small installed base, three of the top 10 selling video games in the US in March were for the Xbox 360 platform.
• Attach rates on the Xbox Live service remain strong, with more than half of all Xbox 360 consoles sold connected to the service either via Silver or Gold tier memberships.
• Still on track for 5-5.5 million by end of Fiscal Year (June)