I was wondering what the most important aspects of an online or computer based GTD system. If you could have someone build a solution for you, what features would you insist that it have?
My top 3:
1. Simple Interface (this is what i think most online task managers and to-do systems lack)
2. Ability to view my lists on my phone/PDA - I don't know if I would use my PDA to add items, but I would want to be able to easily see my projects, actions, ticklers, etc.
3. File attachments - I want to attach files (emails, word docs, whatever) to specific actions, projects, etc.
What do you all think?