When Ballmer dropped a few sprinkles of information about Vista's successor, he dubbed it "Windows Cloud," but said the real moniker would be unveiled at the Professional Developers Conference later this month in LA. That show's agenda was recently posted, and interestingly contained a number of sessions under the header "Windows Strata," leading many to believe that it's the true name of Redmond's next offering. That the section was quickly changed to "Windows 7" makes things all the more suspicious, but don't go cyber-squatting WindowsStrata.com just yet (oops, too late). Strata -- a term that can apply to the layers of the atmosphere -- might be more of a general classification for numerous cloud computing-related offerings destined for all manner of devices. But if so, why rename the sessions, and why the secrecy? And, most importantly, why are we so intrigued?