Earlier this month Steve Ballmer spoke
about a cloud-based development environment, though he wouldn't go into detail, saving it for the Professional Developers Conference (PDC) at the end of this month. However, a look at the PDC sessions on Wednesday would have revealed a possible clue to the name of it: Windows Strata.
There were eight sessions tagged with Windows Strata early on Wednesday. If you checked back later in the day, you would have seen that tag vanish from the list of PDC sessions, however. Ooops.
The eight sessions originally tagged Strata were also tagged Cloud Computing, and that is where they sit now.
Yes, yes, we know strata is a geological term, but our guess is it's a take-off on stratosphere or stratus (the cloud).