Microsoft strategy is sound, it's just that their execution is terrible. Just like the desktop to laptop revolution years ago we are now in a laptop to tablet revolution. Having a familiar OS like Windows will propel users into the tablet world much sooner, if we had iOS on laptops what would the world be like today.
With that said MS has put up some serious obstacles in its own way, it's a shame because they have a real chance of failing because of these issues which are obvious to everyone else except Microsoft. RT/Pro fragmentation and consumer confusion, very bad and will give a lot of consumers a bad taste. RT should have never seen the light of day, I'm using WinPro on an Atom processor and I'm seeing all day battery life with no compromises, but still have a full Win8 OS setup. MS should have released ONLY windows 8 pro, leaving RT on their phones only.
The other bad gamble was on the OS. I'm a huge MS fanboy, but even I have to admit they are way too fragmented and directionless with Windows 8. They managed to both ostracize the business side, and confuse the consumer side at the same time. What they are doing with Win8 is awesome in idea, but execution is not there and it's going to hurt them.
I still think there will be quite a lot of consumers who go for the Atom full Windows units. There is only so much time before people realize they don't have a real OS in the ipad, it will work for many people and the ipad will continue to sell a ton, but there will also be many consumers who need something more and hopefully MS will wake up and figure out what they are doing wrong.