DickM

Windows Collapsing Under Its Own Weight - Gartner

Mini point to was_fred: Apple's System 10.4 (Tiger) does support Classic applications. Can't speak for most recent (10.5) but I think classic runs under 10.5 as well. But only on a non-Intel Mac. Its only Intel Macs that won't run classic. All PPC Mac do. So, I'm not sure what your point is regarding Vista.