"I don't think it is a given that Microsoft is open or trusted," he said. "Microsoft is a convicted monopolist on appeal, and I think that will weigh heavily on peoples' minds as they decide who to partner with. Sun is going out of its way to make sure enterprises own and control their relationship with the customer. Microsoft has not gone out of its way to show this."
Microsoft has a sizeable head start over the Liberty Alliance with about 165 million users already signed up for its service and the Liberty group outlining still vague plans. Liberty Alliance leaders pledge they will roll out their technology in the coming months.
(Sam Costello in Boston contributed to this report.)
Microsoft, in Redmond, Washington, can be reached at +1-425-882-8080, or online at http://www.microsoft.com/.