RIM (well, BlackBerry now) has opened a new chapter in the history of its platform with the release of its first to BB10 OS devices, the BlackBerry Z10 and Q10.The new OS is centered around touch gestures, even the Q10, which has a hardware QWERTY.
The BlackBerry Z10 (http://www.gsmarena.com/blackberry_z10-5251.php), however, joins the ranks of the touch-only army with a 4.2