Mary Jo Foley notes a Microsoft roadmap slide that indicates that Exchange 12, which had been expected in 2006, is now billed as late 2006 or early 2007. Exchange 12 Beta 1 is scheduled for 4Q2005 and Beta 2 in mid 2006.
[...] As anticipated, Microsoft has released Beta 1 of Exchange 12, their mail and calendar server product, and confirmed that the final version may ship as late as early 2007. Press release: Microsoft Corp. today announced the release of Microsoft® Exchange “12″ Beta 1 — the code name for the next version of its leading server for e-mail, calendaring and unified messaging, to a select group of testers. Exchange “12″ will reduce the cost and complexity of the messaging system by providing more control for IT administrators, more value and expanded inbox access for end users, and increased security and compliance for organizations. With the release of Beta 1 — a major development milestone that gives customers, original equipment manufacturers, independent software vendors and systems integrators worldwide the opportunity to preview and provide feedback on Exchange “12″ — Microsoft is on track to make the final release generally available in late 2006 or early 2007. [...]