I also noticed that the old PalmOs documentation is largely still viewable on Internet Archive: https://web.archive.org/web/20...
I taught a course on this in Spring 2004 and my notes are still online at: http://www.cs.sjsu.edu/faculty... (albeit handwritten and scanned). The book I was using was Palm OS Programming Bible, Second Edition. John Wiley & Son. by Lonnon R. Forster. which you could probably pick up cheap from amazon or Ebay.
To quickly scan stuff I just use the PageScanner app for my iPhone. It takes a picture every ten seconds or so and when done combines them into a single PDF. Since its in your phone, it is super portable and convenient.
I noticed telneting in that the server is Apache/1.3.33. Googling on the version number there seemed to be two minor flaws in this version. Why didn't they bother to upgrade to 34?