02-16Ballmer_sm Mary Jo Foley has found the release date to manufacturing (or business launch) of Windows Mobile 6.5 to be the first day of Tech Ed 2009 conference in Los Angeles starting on May 11. The confirmation comes from a blog post on the Windows Mobile Team blog:

Stephanie Ferguson, GM (General Manager) of Business Experiences at Microsoft’s Mobile Communications Business is going to deliver the kick off launch presentation of Windows Mobile 6.5 on Monday, May 11th at 1:00PM – 2:15PM. This Tech Ed 2009 session focuses on one of the biggest launches in the history of Windows Mobile – Windows Mobile 6.5. It is targeted at both IT Professionals and Developers, with a cool demo and an outline of great stuff to come. Be sure to join us as we are giving away 5 Samsung Blackjack II’s!

Although, keep in mind that Windows Phones based on WinMo 6.5 wont be available until later this year.