binaryONE has created Tetris games for for the unix console as well as for the Ti89. With two Tetris credits under his belt, it's not surprising that he released a version for the PSP, simply called PSP Tetris Portable. As with other homebrew Tetris, the object of the game is to manipulate the Tetris pieces to create a horizontal line of blocks without gaps. As the game is still in BETA, it's best not to expect much in terms of design and graphics just yet.