People are saying the Surface is a good product, but it's still Windows!
After several years in Mac and Linux land, I have to say that this is actually a good thing. NOTHING beats Windows on the client side. No other platform offers that amount of applications and solutions. It doesn't matter what you want to do, there will be a software for that - especially when it comes to business needs, but this is also true for the most exotic niches. Neither the Mac nor Linux can say that for themselves.
On the server (including mainframes!), in embedded systems , appliances or custom-made systems, Linux absolutely rules. (FreeBSD would be the next best thing, but Linux has better hardware support.) Since Android is just another Linux distribution, Linux also is the dominant platform on mobile devices. The beauty of Linux lies in its extreme versatility and flexibility - and the fact that it is totally free and does not have any restrictions whatsoever.
Apple products occupy a consumer-oriented niche and are basically focused on entertainment content and nice visual appearance. OS X makes a decent Internet/web client, but it neither has the abundance of software that Windows has nor is it as versatile as Linux - it is too restricted and limited to be able to compete with Linux and its too expensive and does not have enough market share to attract all those niche developers that do not write web design or multimedia software. You know, there is a huge world beyond Facebook and iTunes. It's just that OS X plays absolutely no role there.
Where I live and work, the Surface Pro and other gadgets that run the Intel-version of Windows 8 are the only tablets or tablet-hybrids that could actually be useful - BECAUSE they run Windows and not some castrated tablet OS that can only run Angry Birds or some other consumer software.
Also, Windows 8 actually is a pleasure to use on the Surface Pro. You should try it sometime. Unlike the iPad or Android tablets, the Surface Pro is a BUSINESS device, designed to help people to get actual work done (and still let them consume their entertainment content). The device was created to highlight the strengths of Windows 8; on hardware like this, the new user interface of Windows 8 makes a lot of sense.
Rebrand, think different and approach things from a new angle. They obviously don't know what they want to achieve and that (apart from crap products) is the worst thing to affect a brand. If Microsoft don't know who they are, how can a consumer trust them and their products?
I think they are fully aware of the market shifts and they know exactly what they want and will eventually get there. Not one Microsoft product ever had an easy start, but if Microsoft is known for one thing, then it is their persistence. They don't give up easily, and the company has always worked the best when there was some serious competition.
Microsoft know that the times of the traditional client-server computing are over. The client has gone mobile and services are moving to "the cloud". Now what are they doing? They are turning their powerful backoffice/business products into cloud-based services and they are evolving their client into a product that converges the desktop, smartphones and tablets. And let's be clear here: They are the FIRST company that actually ships a product that uses the same user interface on a game console, a smartphone, a tablet, a notebook and a desktop. Canonical is the only other company that is also working on such a product - Ubuntu Touch - but Microsoft shipped first. Just like every 1.0 release, nothing is final and there still is a lot of work to be done. But they will get there eventually.
The goal of Ubuntu Touch and its reference hardware implementation, the Ubuntu Edge, is even more radical: The smartphone is also your desktop computer. Just plug it into a docking station and the OS will scale to the new form factor. THIS is where the journey is headed, and I find it amazing that only a small company seems to have really grasped this. Microsoft is close to this realization, but not there yet. And Apple is still stuck in the multiple device category world.