http://blogs.technet.com/jkruse/archive/2007/08/26/easy-ways-to-evaluate-exchange-server-2007-sp1-today.aspxFrom You Had Me At EHLO... As a follow-up to our Exchange 2007 SP1 announcement , I wanted to let you know that we have finished preparing two additional ways in which you can experience Exchange 2007 SP1 Beta 2: SP1 Hosted demo: please visit https://signmeup.exchange2007demo.com/exchange2007demo/en-USCommunityServer 2.1 SP1 (Build: 61025.2)