With QNX you get a RTOS. You get a higher level of reliability, dependability than with multitasking. You don't get that sort of reliability with some pre-pac

With QNX you get a RTOS. You get a higher level of reliability, dependability than with multitasking. You don't get that sort of reliability with some pre-packaged Linux distribution. You need to do some nontrivial kernel hacking to make Linux into a RTOS. Why did Blackberry buy QNX?