BlackBerry's tablet (which I loved; combined with a cheap Curve and a $40 AUD a month prepaid plan, I had unlimited internet access on both devices, super neat)

BlackBerry's tablet (which I loved; combined with a cheap Curve and a $40 AUD a month prepaid plan, I had unlimited internet access on both devices, super neat) was based on QNX if I recall correctly! Though it had its own touch UI on top of it.