Tetris for BlackBerry PlayBook has an update available, bringing it to v2.3. I did not notice any kind of change-log so I am not sure if this update brings some new features or just compatibility / bug fixes. Tetris came pre installed on the PlayBook, but if you happened to get rid of it you can download it via the link below.

Get the biggest blockbuster game ever, designed just for the BlackBerry® PlayBook™! With bolder, brighter HD-quality graphics, this TETRIS game is unlike any you’ve played before! It’s an absolute BlackBerry® PlayBook™ essential.

SUPPORTS HDMI!
Output TETRIS to any HDMI-supported device, such as your television! Clear Tetriminos on the BIG SCREEN!

ENDLESS HOURS OF PLAY: Are you a TETRIS fanatic? Then unlock the never-ending Marathon Mode and play on and on. Even the music will hook you! The BlackBerry® PlayBook™ version includes a catchy retro remix of the game’s famous tune.

Price Free

Tetris for BlackBerry PlayBook is Available in BlackBerry App World Here.