The 30 day challenge with the Nokia Lumia 920 is over, and there's a lot to like about Windows Phone 8.  The operating system is incredibly fluid and easy to use, and it packs a lot of great features for those that use Microsoft products (Office, XBOX, and the like).  That said, the Windows Store needs some work, and while the live tiles are innovative and fun to customize, they don't offer the always-connected notifications that Android does (and that many rely on).  Still, Windows Phone 8 has an incredibly bright future ahead.