You lost me at "tech savvvy consumers". I know quite a few (none of whom would use such marketing drone speak to describe themselves) very clever people who happily and enthusiastically use Microsoft products over alternatives for very rational reasons.
Let's take a look at Xbox. Not exactly a failure. I do believe they've sold quite a few and they aren't nearly as disreputable on the DRM front as Sony. Windows Phone? The Nokia line up is solid, with growing sales while the OS is much leaner than Android and has more flare than iOS. So what that the App store isn't as big - 250,000 fart apps, Angry Birds rip-off and obscure social apps isn't anything to be proud of.
I think Surface is probably the only one I can agree on. This was a bad misstep. They should have scaled up Windows Phone OS, not scaled down Windows 8. An already large x86 ecosystem on one side and a shared ARM derived eco-system (for phones and smaller tablets) makes more sense than three separate ecosystems, where MS have ended up.