A press release announces that a Windows Mobile 6 update will be available for the Treo 750 users:

Windows Mobile 6 paired with Exchange Server 2007 will deliver email enhancements such as HTML-formatted email messages, the ability to set an out-of-office message remotely, and live links to Microsoft SharePoint documents. Also, the Treo's color touch screen makes line-of-business applications easier than ever and allows users to take full advantage of new mobile versions of Microsoft Office Outlook, Office Word, Office Excel and Office PowerPoint. Microsoft's Direct Push Technology continues to be available out of the box, giving Exchange users fast, automatic wireless updates of their email, calendar items, contacts and tasks without additional third-party software or fees.

Windows Mobile 6 compared to Windows Mobile 5 is a mixed bag, equally impressive and yawn-worthy. But if Palm can apply Microsoft's newest version of its mobile OS to the Treo 750, a smartphone powered by run-of-the-mill hardware, it's possible that Windows Mobile 6 can also work on even year-old Windows Mobile gadgets.

More info when it becomes available.