The point I was trying to make is that the Indivision AGA basically replaces the Lisa chip's functionality with an external board that can do 2.5x the scan rates of existing AGA chipsets. The Indivision ECS has dual-head support.
Individual Computers is milking the Clone-A chip designs for all they are worth already. Things can only get more involved from here. I expect we will all be pleasantly surprised when the last AGA patent expires.