MS does everything backwards these days...
At least that's the way it looks to me.
Take the Windows Phone. I'm sure many people picked it up with the vast support with Windows in mind. I'm referring to XP for example which has been supported for 13 years, Windows 7 which will easily last another 6 years (the Professional version at least) and Office is also amongst those regions. One of the reasons I'm not too bothered with this Metro doctrine yet.
Windows Phone otoh... There was a first line of devices; and MS insisted on specific hardware specs to meet the demands of the OS. That was reason enough for me to assume continuity even despite the short lifespan of Windows Mobile 6.5. But alas; roughly 1.5 year later the device is already marked / rumoured to be EOL'd because WP8 devices won't be compatible with WP7 devices (logical) but if any software functions will make it back to 7.5 also remains to be seen. IMO that's doing things backwards; including not informing the customers on what is really going on and keeping a rather short lifetime.
Same applies IMO to Win8 & Office 2012. People tried hard to make Office 2010 user friendly (personally I like the Ribbon there but can well imagine that others don't) but with the latest Office a lot of (IMO) key features seem to be getting reversed again. I like my 'Open recent' backstage view section from where I can also immediately go to the "open file" section if I want to. The new "backstage" metro view otoh? Doable, but not as easy it seems.
I don't like the way things are headed but at least I am very happy to have my current office environment supported for many years to come.