Free puzzle games I love - what are you playing? (note "free" - no demos/pay/adware junk, just straight up free games). The downloads from BlackBerry Help (mobile.blackberry.com) don't count, we all know about those. BombSweeper
('qw' marks bomb on suretype keypad) http://www.getjar.com/products/2640/lotecBombSweeper Pipes
(try 14x16 grid on a 240x260 res screen) http://www.getjar.com/products/4808/Pipes MM Reversi
(this is the hardest reversi game to beat ever, wow) http://www.getjar.com/products/1292/MMReversi Sokoban
(hundreds of levels) http://www.getjar.com/products/2667/lotecSokoban
So what are you playing? I prefer games that don't have timers or require constant attention, as I get interrupted frequently, put the game aside, play during commercials, etc.
PS: make sure to post a link where we can download!