2.1.0.1917 (March 31, 2014; 10 years ago (2014-03-31)) [±][1] BlackBerry Tablet OS is an operating system from BlackBerry Ltd based on the QNX Neutrino real-time operating system designed to run Adobe AIR and BlackBerry WebWorks applications, currently available for the BlackBerry PlayBook tablet computer.

The BlackBerry Tablet OS is the first tablet running an operating system from QNX (now a subsidiary of RIM[3]).

Support for Android apps has also been announced, through sandbox "app players" which can be ported by developers or installed through sideloading by users.

[4][5] A BlackBerry Tablet OS Native Development Kit, to develop native applications with the GNU toolchain is currently in closed beta testing.

[6] A similar QNX-based operating system, known as BlackBerry 10, replaced the long-standing BlackBerry OS on handsets after version 7.