Actually, I am REALLY happy it's 10... I have 20 years of code, some of which differentiates between Win9x, WinXP, and etc... Probably quite a bit of it does something different if it finds 'windows 9' in the version. Especially batches... Hunnerts of them. That may well be why they skipped Win9, and I thank them for it!
Not following why 10 would be different from 9 in that respect.