(minimig) replaces only a500 and similar. So if it replaces one day an a1200 or more, then will be VERY usable and interesting.
I think we must focus, minimig is a "16-bit solution". Maybe in the future there will be a minimig 2 that focuses in being a "32 bit solution", but please do not downplay minimig because it does not run aga/32 bit applications, it is like saying "When motorcycles have 4 wheels, THEN it will interest me".