Ports

J^3 - RISC OS - NetHack - http://www.quote-egnufeb-quote-greaterthan-colon-hash-comma-underscore-at.info/riscos/games.php
Port of version 3.4.3. Developer notes, source, and executable.

NetHack for Agenda - http://www.delorie.com/agenda/nethack/
For the VR3, a Linux-based PDA. Source, executables, and install directions.

NetHack for Atari - http://user.cs.tu-berlin.de/~gaston/nethack/
Various versions for GEM or tty mode, including SLASH'EM.

NetHack for Windows CE - http://www.haakana.net/nethackce/
Discontinued. Source, executables, and brief developer notes.

NetHack-Palm Porting Project - http://nethack-palm.sourceforge.net/
Discontinued. News, FAQ, development plan, and source access.