Microsoft is killing off the Messenger client, not the Messenger service, which has essentially been subsumed by the Skype instant messaging client (which can now connect to the messenger service).
They're just getting rid of excess clients, but keeping the basic overall functionality.
You also make the basic mistake of thinking that metro is just a UI. It's not. It's actually an entirely new OS, running side-by-side Win32. This OS is currently in the infant stage, but will gain strength in further revisions, the first of which is expected next summer.
MS has been selling 8 at a discount, but that ends next week when it returns to the regular price. If it was such a disaster, why would they get rid of the discounts?
Azure is doing quite well, actually. Skydrive, however has not yet caught on. Don't confuse MS's web services strategy for it's apps with Azure the service (for third parties). The first may use the second, but the second is a whole lot more.
Microsoft is killing some services, such as Live Mesh, but they're replacing them with new services rather than just killing them off (which Google does).