I think the confusion comes from past experience...

VB 6 was VB 6, whether it was the development tool or the runtime.
VFP 9 was VFP 9..same story.
Same with VC++, etc.

>I've noticed that people often confuse the various issues (not having a go a Bill though :-} )
>At least Entity Framework leap-frogged a couple of versions so that it is now also EF 4.0 ......