I obviously do not have to personally struggle with this mind-numbing disposition, but I do have firsthand experience living with a sufferer of this condition. It is immediately apparent on approach of our home from the appearance of the the exposed wood around the front door, that following projects to completion is not one of his strong suits. Butterfinger is one of the most kind and intelligent people I know, but he has a real hard time following things through, especially once he has figured out the exact steps needed to finish a given project.
I listen to venting, earn credits toward my degree in Psychology, work on tedious/remedial tasks as they are passed down to me, and I will not accept ADD as an excuse for anything, especially anything startup related. They way I see it, ADD is actually a pretty decent disorder to have when it comes to being able to prepare content and find new ideas; a fitting entrepreneurial disease. If your brain is constantly trying to wrap itself around a few different topics, you will somehow find a way they are interrelated, and be able to harness that interrelated nature in developing a new product or providing a compelling argument with a novelty never heard before.
Scrambled eggs can either be a nasty, disheveled mess, or an artfully constructed Sunday breakfast food, capable of filling you up while nourishing your brain.