Simon doesn't claim he invented PaaS, but he did predict it.
As far as learning from Zimki, I think the lesson Simon says he learned was basically (paraphrasing) "make sure you don't run out of political capital" and watching out for misaligned incentives.
As far as learning from Zimki, I think the lesson Simon says he learned was basically (paraphrasing) "make sure you don't run out of political capital" and watching out for misaligned incentives.