Last night, I started trying to use Backpack for organizing some lists related to implementing GTD for personal stuff. Backpack seems like a good choice, since it’s web-based, and hence available on my PC or Mac, and also at work if need be.
The first thing I figured out is that the to-do list functionality in Backpack is interesting, but mostly useless. It looks nice, but it’s really missing a log of functionality. You can reorder lists, for instance, but you can’t easily move an item from one list to another. (I could get Backpack to let me do this occasionally, but I couldn’t figure out how to do it consistently.) Also, you can’t move a list from one page to another. It’s a lot easier to manage lists simply as part of the body text on a page, in either a plain old bulleted list or numbered list. You can move stuff around easily, just using good old cut & paste. You don’t get the fancy checkboxes this way, but I can deal with that.
I’ve also considered something like GTDTiddlyWiki, or one of its variants. The idea there would be to stick the HTML file into my FolderShare directory. Then it would, in theory, get replicated between my desktop PC, iBook, and work PC, so I could access it from any machine. I’ve heard that all of the GTD wiki variants tend to bog down if you stick too much stuff in them, though.