The fun physics game Cut the Rope has been brought to the BlackBerry PlayBook but BlackBerry smartphone users are still left wanting. SolverLabs has decided to step in a fill in the gap with Cut the Thread for BlackBerry smartphones. The game is really fun and runs quite well. The only real catch is that it is only available for OS 6.0+ BlackBerrys with touchscreens. That essentially means the Torch and Bold models.