It got off to a rocky start, but the official English Windows 7 site went live about 11 a.m. ET Friday. But CNET News' Ina Fried reported the download wasn't available as of 12:25 ET.
She said Microsoft recommends going through this link.
Since the beta will be available to only the first 2.5 million people who download it, as Ars Technica points out, no doubt it will be hammered.
Before that, it was available on the Chinese (English translation) Microsoft Technet site as a a 32-bit and 64-bit download, but was spilling out errors. It also will be available in German, Japanese, Arabic and Hindi.