Complex sentence: The phone was released with Windows Phone 7 and shipped with AT&T Navigator, AT&T Radio, AT&T myWireless and AT&T Uverse which are uninstallable and Samsung's "Now" applications which features weather, news, and stocks.
Split into simpler sentences: The phone was released with Windows Phone 7 and AT&T Navigator, AT&T Radio, AT&T myWireless and AT&T Uverse which are uninstallable. The device also shipped with Samsung's "Now" application which displays weather, news, and stocks.