using iCal with GTD
I use iCal for my category lists. If you make a different empty calendar for each category it works just fine. It does not sync by category to the Palm though, so you have to develop a priority system. I make all my @calls "very important" and so on. This allows for all the calls to be in the same place. It is kind of a pain in the neck, but there are advantages. You can make new todos in a category by just dbl clicking instead of using the drop down in Palm desktop. You can make a "memos" "calendar" and make each one the title and use the notes section for the contain. It syncs just fine. We really need a good mac app for GTD.
"If a thing is worth doing, it's worth doing badly."