J^3 - RISC OS - NetHack - Port of version 3.4.3. Developer notes, source, and executable. - http://www.quote-egnufeb-quote-greaterthan-colon-hash-comma-underscore-at.info/riscos/games.php
NetHack for Agenda - For the VR3, a Linux-based PDA. Source, executables, and install directions. - http://www.delorie.com/agenda/nethack/
NetHack-Palm Porting Project - Discontinued. News, FAQ, development plan, and source access. - http://nethack-palm.sourceforge.net/
NetHack for Atari - Various versions for GEM or tty mode, including SLASH'EM. - http://user.cs.tu-berlin.de/~gaston/nethack/
NetHack for Windows CE - Discontinued. Source, executables, and brief developer notes. - http://www.haakana.net/nethackce/