Handheld

Helio ChessMate
Home of the freeware chess program for the V-Tech Helio PDA. Source code available.
http://www.dse.nl/~merkerk/chessmate

Mobile Chess games by VEL Technologies
Interactive chess games and puzzles for BREW phones, PALM, PocketPC, RIM Blackberry and other advanced mobile devices.
http://phonechess.com/

PocketChess 1.0 for Royal DaVinci
[Freeware] Chess-playing program, black and white with 8 levels.
http://www.eskimo.com/~scottlu/dv/index.html

PocketChess 1.2a for Epoch
[Freeware] Greyscale set, move list.
http://www.eskimo.com/~scottlu/psion5/index.html

Chess Programs for Pocket PC and Palm Devices
57 page review of 24 Palm and 39 Pocket PC chess programs. in HTML DOC and PDF formats. <small>(September 1, 2005)</small>
http://www.grailmaster.com/misc/chess/comp/chessrev/chessreview.html

Chess and Technology
One fan's top three choices for Palm and PocketPC chess software, and why. <small>(October 1, 2004)</small>
http://www.fishdev.net/chess/