Microsoft isn't yet ready to talk about the worst-kept secret in the mobile world, its pending Windows Mobile 2005 operating system release. The Redmondians said they were not yet ready to go public with information about release-candidate beta versions of the Windows Mobile update, code-named "Magneto," which allegedly is set to be released to manufacturing in the first half of this year. Instead, at the 3GSM show this week in Cannes, Microsoft is focusing on a http://www.guardian.co.uk/business/story/0,3604,1412175,00.html">new partnership it has inked with cellphone OEM Flextronics.