Managing (any) lists...
We'll always walk a thin line between supporting more detailed "techie" kinds of conversations and questions, and maintaining the focus on the simple but powerful concepts that don't require that kind of granularity to implement successfully. There are already several postings about discrete software add-on's to the Palm, Outlook, etc. which is fine for the folks who are already deep into those tools, but which might be irrelevant to many of you. In fact, from our experience with lots of people, you can very easily get much too wrapped up in trying to make every detail fit and connect in all the ways you'd like it to. Systems must work when you have the flu, which means easy, simple, straightforward, without having to think too much or work too hard about fitting within a structure. Plain flat lists, tied together in a Weekly Review to keep them current, usually wins the day.
My recommendation continues to support the FUNCTIONALITY of a system. The form (in my opinion) is irrelevant to the effective use of an action management tool such as Getting Things Done. For example, whether I write my "@Agenda" actions on a paper list, or in an excel spreadsheet, it only really works if I am engaged and consistent about REVIEWING that list when I could do something at the computer. For me, speed and compact-ness are major features I look for for my own system. I use a Palm m505. I have added NO list management software on it, because the Palm designed it perfectly from the start! All I need is a list titled: @Computer, another titled: @Phone, etc. Now, after 6 years of working this system, I don't have to think "about" this system, I simply have an idea, get it out of my head, and go on to the next thing.