xPente for PALM
Play Pente and Keryo-Pente - simple and addictive board games. Pente and Keryo-Pente are played between two opponents on a board. The winner of the Pente is the player who will be first to attain five in a row or capture five (or more) pairs of your opponents stones. ... The winner of the Keryo-Pente is the player who will be first to attain five in a row or capture 15 (or more) pairs and trias of your opponents stones.
http://www.setupgroup.com/palm/pente.zip - 41Kb - Download - Screenshot

xPente for Pocket PC
Play Pente and Keryo-Pente - simple and addictive board games. Pente and Keryo-Pente are played between two opponents on a board. The winner of the Pente is the player who will be first to attain five in a row or capture five (or more) pairs of your opponents stones. ... The winner of the Keryo-Pente is the player who will be first to attain five in a row or capture 15 (or more) pairs and trias of your opponents stones.
http://www.setupgroup.com/pocketpc/pente.zip - 147Kb - Download - Screenshot

XO
The XO is collection of classic and non-classic board games as checkers, shashki , international checkers, gomoku, renju, pente, keryo-pente, connectris, othello, ataxx, barrier, stack4, clobber, entropy, Cats and Dogs, LOA, 3 Musketeers and more. Features: You can play with different set of...
http://www.setupgroup.com/windows/xo.zip - 1Mb - Download - Screenshot