Laridian has just released a brand new product that enables users to create books for PocketBible, DailyReader, and MyBible 4. There are three different versions of BookBuilder, one for Pocket PC, one for Palm OS, and the professional edition. Knowledge of HTML is necessary to do the tagging, although some of the more tedious tasks can be automated.
The ability to write personal notes is a given in any good Bible program, but some users do want to go one step further and build their own Bibles and reference works. I firmly believe that some type of authoring/self-publishing tool is a value-added feature that many people are interested in. This has been the trend in Bible software for desktop systems, and I suppose we'll see pretty much the same happen in the PDA world too. Quite honestly, I think this is the way to go. So, we should all congratulate ourselves when tools like this one are made available.