Surface RT and the whole metro store were very exciting until Microsoft unveiled the lockdown.
And even today I think that a reversal of course is possible and will be beneficial for the adoption of windows 8/RT. Just unlock the damn things - a lot of professionals are looking for a third device still.
Windows and PC succeeded because they were wild and buggy and moldable - that allowed them to deliver good solution now instead of perfect in 10 years.
The same things is happening with ARM/Android - I am having more fun switching roms than anytime since the late 90s. And from anecdotal evidence Raspberry Pis and the likes are busy taking over the world where mobility is not a concern - the moment you are asked by non geek about the Pi and can it move a home server, you know the rules of the game are changing and fast.