Google's notify bar leaves other platforms' notification systems looking incomplete. Emails, SMSs Facebook notifications, charging, software updates, task managers--just about anything you can think of is managed from a pull-down drawer that can be almost universally used from any screen.
Windows Phone 7 uses tiles that require leaving the current application. iPhone has serial notifications that can't be grouped onto one screen.
Last updated November 08 2010: 2:25 PM ET