Is it a service pack for Windows 8 ?
By any other name - yes, I reckon so.
Strictly speaking it's a service pack for Vista, sort of.
A brief history:
Goodbye XP, hello Vista...
Vista is stable but excrutiatingly slow and with unpopular features such as UAC, making Vista not very well liked.
Microsoft develop service pack for Vista but instead of releasing it ad hoc as is normal practice, run it by Redmond's marketing department.
Marketing department advise tweaking the GUI a little more and launching the revamped Vista as a new operating system
Microsoft PR folk spend $8 million and after three weeks, 22 business lunches and a weekend in Hawaii christen 'new' OS 'Windows 7'.
On hearing the news Steve Ballmer experiences overwhelming urge of pleasure so intense that he has to be sedated and hospitalised for three days.
The revamped Vista is launched as new operating system Windows 7 and the public take to it like ducks to water and overwhelmingly across the board proclaim it's goodness.
Microsoft collectively silenced as they are stunned with the knowledge they actually got something right.
Two years later Microsoft employee notices people using iPads, tablets and mobile phones, sees Android OS and has an idea......