BlackBerry OS 4.2

Tablets, smartphones and phones with BlackBerry OS 4.2. All about the version BlackBerry OS 4.2 operating system for mobile devices

BlackBerry OS is a proprietary mobile operating system developed by BlackBerry Limited for its BlackBerry line of smartphone handheld devices.
The operating system provides multitasking and supports specialized input devices that have been adopted by BlackBerry for use in its handhelds.

Enterprise / Developer:	Research In Motion
App Store:	BlackBerry App World
Number of applications:	70,000
OS Kernel:	Java
Version:	BlackBerry OS 4.2
Version release date:	June, 2007