Its look like most of Windows phone users are still in early version Windows Phone 7 as Microsoft is requesting windows phone users to upgrade to Windows phone 7.5 a.k.a. Tango if you have not done yet.
Mazhar Mohammed, Microsoft’s program management director states that he would like to see windows phone users to use latest version of mobile operating system, WP 7.5 so that they can buy, update and downloads apps from Windows Marketplace.
Well if you have not updated your windows phone to latest version, then you can use Zune for windows and Windows Phone 7 connector for Mac to check software update for your phone. If the update is available, you can go to through updating your device. The latest updates bring some fascinating features such as making custom ringtones from MP3 and WMA files, visual voicemail, a battery saver feature that shuts down parts of the phone to save battery life and more.