Windows Small Business Server 2011 Essentials
From BetaArchive Wiki
Windows codename Aurora is the next Small Business Server (SBS 2008 R2) and there are only connectors leaked (no builds)
Leaked connector builds:
Build 7360 = 6.1.7360.0 (hsbs_ids.091210-1540) (Codename: Colorado)
Build 7408 = 6.1.7408.0 (hsbs_main.091216-2300 (Codename: Colorado)
Build 7434 = 6.1.7434.0 (hsbs_main.100125-2200)
Build 7444 = 6.1.7444.0 (hsbs_main.100204-2200)
Build 7447 = 6.1.7447.0 (hsbs_main.100207-2200)
Build 7451 = 6.1.7451.0 (hsbs_main.100211-2200)