So basically, the current iteration of the AVP is the Apple Newton: you can kind of see where the product could lead to but right now it's held back by the realities of current technology.
Apple of today don't have this problem or feature.
I think it's fair to say the Newton was ~15 years ahead of its time, and any amount of investment could not have significantly accelerated that. You need all the incremental semiconductor industry advancements along the way.