Text Editors

Documents To Go
Use Word, Excel, and PowerPoint files on any Palm, Visor or Clie handheld. Chosen by Palm to be included in the m500 series. Add-in allows email sync and PDF file viewing. Commercial. Starts at $49.95.
http://www.dataviz.com/products/documentstogo/index.html

Memo Plus
Replacement for the built in Memo Pad. Add drawings, start from a template, even set an alarm for a Memo. Library of users' templates. From Hands High Software. Shareware.
http://www.handshigh.com/html/memoplus.html

pedit
Memopad replacement that breaks the infamous 4k barrier and adds all the functionality of a true power text editor. Imports and exports Palm DOC format. [Shareware]
http://home.columbus.rr.com/nevai/palm/

WordSmith
Full-featured word processor, doc viewer and enhanced memo pad available for the Palm organizer. [Formerly known as BackupBuddy Software, LLC]
http://www.bluenomad.com/ws/prod_wordsmith_details.html

Zdocj
A freeware text editor for large files. The editor has only basic features and is light on memory, with low latency for most operations.
http://www.angelfire.com/ca2/roderick/zdocj/zdocj.htm