At the time, though, he noted that the Windows Cloud name was not necessarily the final name. On Wednesday, an eagle-eyed blogger noticed that the Web site for Microsoft's Professional Developers Conference was listing several cloud computing sessions under the subject heading "Windows Strata." Microsoft has since taken down the Windows Strata references, but not before a number of blogs noted the listing.
In his talks last week, Ballmer quipped that by the PDC, Microsoft might even have a trademark for whatever it was going to call the cloud operating system, which he dubbed "Windows Cloud."
"We'll need a new operating system," Ballmer said in France. "Just as we have an operating system for the PC, for the phone, and for the server, we need a new operating system that runs in the Internet. I bet we'll call it Windows something. We're going to announce it in four weeks. We might even have a trademark by then."