Ladies & gents, start your (2.5 million) downloads. The official Windows 7 Beta is ready for download at Microsoft’s TechNet site. It looks like downloading the 32- or 64-bit versions requires a Windows Live ID account, but you can sign up during the click-through process, of course. As you might expect, the servers are a bit bombed,. Having trouble getting through to download? Check out tips on getting the download, and post any work-arounds/mirrors you find in the comments (other than, of course, “use BitTorrent”).