The recently announced Windows Essential Business Server 2008 (WEBS) public beta is now open. Click here for details. Available later this year and with support for up to 300 PCs, WEBS will be an ideal solution for mid-market customers. It includes up to four licenses of Windows Server 2008 (in the Premium Edition), SQL Server 2008, Exchange Server 2007, System Centre Essential, Forefront, ISA & more.
Checkout Nick Kings Blog for more information.