"This only makes sense if you were controlling something that could roll. Otherwise it's completely illogical."
Yeah, and pushing an analog stick makes a WHOLE lot of sense to someone who hasn't played a game before. If you think it does, then I retort that people are just as familiar with tilting as pushing buttons and levers: who hasn't poured something in their lifetime? You sound unwilling to try a new interface, and rag on anyone unable to play games "as God meant it." Seriously, you remind me of an old programmer uninterested in even considering working with O-O in spite of its success (granted, tilt technology is hardly standard right now).
If Nintendo is able to create a "lock" feedback mechanism for the center of gyration/tilting like they have for analog sticks, the problem is solved in my book. I know I have trouble telling if I am pushing directly forward on an analog stick, so I hardly consider the analog stick to be the most precise input device possible. I understand your concerns, especially over ridiculous arm motions, but tilting seems more intuitive to me for sublte camera control than flicking the C-stick and for F-Zero machine tilt than shoulder buttons.