Il sito Bink.nu, ha stabilito in base alle proprie informazioni, una roadmap di Windows Longhorn. Eccola qui di seguito:
Longhorn Beta 1 code complete
March 16, 2005
Longhorn Beta 1 internal release and domain rollout
April 2005
Longhorn Beta 2 (and product) code complete
July 1, 2005
Longhorn Beta 2 internal release
Q3 2005
Longhorn Beta 2 public release
September 2005 (PDC 2005)
Longhorn Release Candidate 0 (RC0) internal release
Q4 2005
Longhorn Release Candidate 1 (RC1) internal release
March 2006
Longhorn release to manufacturing (RTM)
May 2006
A Maggio 2006 dovrebbero essere commercializzate le seguenti versioni: Longhorn Starter Edition, Longhorn Home Edition, Longhorn Premium/Media Center Edition (versione Home Edition con funzionalità Media Center, come XP Media Center Edition), Longhorn Professional Edition, Longhorn Small Business Edition, Longhorn Mobility/Tablet PC Edition (come Windows XP Tablet PC Edition), Longhorn "Uber" Edition (funzionalità di Home, Premium, Pro, Small Business, e Tablet PC).