That was a cool read. My memory of the Skirpan vs. EDI lawsuit is all based on hear-say of 30 years ago and whatever was in the "trade journal" - which would have been Theater Crafts. Not much to go on, though I thought the Light Pen technology had been involved, not the case according to the LD-8 brochure. And it's too late to ask Steve Skirpan, who I'm told passed away a few months back.
Things haven't changed in memory consoles ?. Think about that the next time you pull out your iPhone to re-focus a Focus Pallete on an Ion.
SB