Got it. I think I still like the current CPU system, flaws and all, better than that e500 concept.
Btw -- sitting in the back of an almost empty 739 LAX SFO today again. Switched into it last minute after they'd cleared the entire list into the cabin.
On the upside, this flight is so empty that I've got an economy-plus lie-flat seat, i.e. the entire row to myself.