Message on the official Microsoft Windows 7 Beta download site:
Sorry, Windows 7 Beta downloads are no longer available. If your
download was interrupted, you can still finish it. And, you can still
register for a product key or look up the key you've already gotten.*
http://www.microsoft.com/windows/windows-7/beta-download.aspx [3]
Links:
[1] http://linux.philosweb.com/drupal/category/it/it-general
[2] http://linux.philosweb.com/drupal/category/it/softwareosmicrosoft
[3] http://www.microsoft.com/windows/windows-7/beta-download.aspx