It doesnt make sense that a product which leverages new OS X features and underlying technologies, should update in lockstep with its companion version for an entirely different OS out of Apples control: Mountain Lion certainly calls for a new Safari... but Mountain Lion certainly does NOT call for a new Windows Safari.
If Safari for Windows does live on, I think Apple should stop even trying to number the Windows version the same and let each one leverage the strength of its OS. Let Safari be a better fit for Windows than it has been, and let it advance independently on OS X. (And of course, share things when possibledefinitely the rendering enginebut without the pressure of simultaneous release.)
In other words, an approach more like what Microsoft has used (at times) with Office. Office for Mac has been its own thing with separate versioning.
If Safari for Windows does live on, I think Apple should stop even trying to number the Windows version the same and let each one leverage the strength of its OS. Let Safari be a better fit for Windows than it has been, and let it advance independently on OS X. (And of course, share things when possibledefinitely the rendering enginebut without the pressure of simultaneous release.)
In other words, an approach more like what Microsoft has used (at times) with Office. Office for Mac has been its own thing with separate versioning.