I haven't been unsuccessful locating previous topics on this subject probably because ADD is also 'add' so it pulls up 500 topics.
I've been working to implement GTD and some of my family is considering make the change also. We are in the process of trying to determine if one of my family members (one of the most disorganized) is also struggling with ADD. I am pretty new to the subject...currently reading "Delivered from Distraction" and "You Mean I'm not Lazy, Stupid, or Crazy?!"
Any GTD specific suggestions would be much appreciated as well as any ADD initial coping skills suggestions. It would seem to me that GTD should still work...and the books stress ADD ppl need to get "organized enough to accomplish their goals", but I don't know if there would be special implementation issues. I mean I have struggled with the change for months!