If you are using Windows 7 until Windows 8 "gets better" or until Windows 9 comes out, you may have to rethink your platform of choice a little bit. According to sources, Microsoft is all set to end "mainstream" support for Windows 7, Office 2010 and Windows Server 2003 as early as January of next year. What does this mean to you? It means that no features will be updated, but there will contiunue to be security fixes until 2020.
Some industry watchers have speculated that Microsoft will end up pushing out Windows 7's support dates the way the company did for XP, given Windows 7's popularity and pervasiveness, but so far, there's been no word from Microsoft officials that this is the plan.