Why? Because as a MSDN subscriber you are amongst the first to get your hands on Windows 7 as part of your Subscription Benefits.
On August 6th, the first public release of Windows 7 will be available to MSDN Subscribers, which is over two months ahead of the general availability date of October 22nd for retail and OEM customers. To support the variety of languages and builds, 893 different images are being released to MSDN Subscriber Downloads in three waves through August 21st.
FYI, some work had been done to make sure this will be a pleasant
experience for you:
“We expect that this release will break all MSDN download traffic records, which is why groups from across the company have gone through tremendous effort to ensure its success. This has included but is not limited to: load and performance testing on the MSDN Web site, adding significant capacity to the product key servers, performance testing on the product key servers, capacity planning for the download servers and network, and more.”
Find out all about Windows 7 here.