If I were the sort of person who used the phrase “paradigm shift”, I’d use it here

Me: why the HP TouchPad is another nail in Windows’ coffin.

What’s happening is incredible, and it’s happening incredibly quickly. Until very recently, personal computing generally meant Windows running on Intel, with a smattering of AMD, Linux and Mac OS X to keep the internet in arguments. Now, though, personal computing often doesn’t involve traditional computers at all.