First -- Thanks for your response. I had a GenTouch and returned it after having H/W issue and no response from the company (could be they were overloaded). I have not replaced it and was looking for input. I think the M001 may be good for early work and getting some experience but not sure if that is well spent money. Would the M002 be any different? I will look at the APAD as it sounds like that is an active platform. Let me review the link you sent and will plan on commenting back as I have relevant updates.Have a great day.