When Microsoft's latest mobile operating system debuted, it stood apart visually from other mobile OSes. Windows Phone 7 eschewed the desktop-like interfaces seen on iOS and Android. Instead, it went with rectangular "Live Tiles" that host various apps and interactions, organizing them in a constantly cascading home screen. It was just as intuitive and overall, it functioned well. But a year later, it feels stale.
Luckily, Microsoft has rolled out a juicy update to the Windows Phone family: Mango.
The "Metro" UI and general navigation through the platform remain largely unchanged from Windows Phone 7, but Windows Mango (officially, version number 7.5) makes some notable improvements to the way it integrates social networking. The web browser has been upgraded. It also does everything a mobile OS is supposed to do – use hardware sensors, search and app discovery features to help make the most of your handset. Basically, Mango bumps Windows Phone from good to great.
Microsoft loaned me a Samsung Focus handset (for AT&T) loaded with the new release. Mango will be available as an upgrade on any Windows Phone 7 device starting Tuesday.
>Mango will be available as an upgrade on any Windows Phone 7 device starting Tuesday.
After a quick boot, the phone's lockscreen shows you the vitals: time, date, what's next on your calendar, and message alerts. You swipe upwards to send it on its way and reveal the home screen filled with rectangle-filled Live Tiles. Phone, People, Messaging, Mail – you have full control over what Live Tiles display and what order they're in.
But that's all the same as before.
The biggest change to Windows Phone 7 is in the revamped People Hub, where your phone, e-mail, Facebook, Twitter and LinkedIn contacts can be stored together in one big, long alphabetical list. As in Windows Phone 7, you have filters: All, What's New and Recent. All is that big list of all of your contacts; What's New is a recent social media activity stream, which you can keep lumped together chronologically or organize by platform (just Facebook updates, just tweets); and Recent shows the people you've called, messaged or e-mailed most recently.

