Palm OS

Information about the operating system, and timeline of features added, and variants and spinoffs.

https://web.archive.org/web/20150102191554fw_/http://deeptec.com/palmevolution/milestones.html

Something about hacks

Something about desk accessories

Hidden “dot shortcuts”: https://web.archive.org/web/20010211203257/http://oasis.palm.com:80/dev/kb/faq/1428.cfm