That aint funny
As for Tom giving any more details, I think we're SOL for info because he's said all of it. Read the thread a few times and you'll get it. It's not the system he's looking at a company to develop. The system is already there. It's a specialized part, which needs to be injection moulded. That is what he is talking to companies about, not the propulsion system. At least, I think I'm on the right track there.
From reading the threads as well, it almost sounds like a mounting part which utilizes the rear handle....but all of this has confused me so much that I'd have to read through again to verify.
My thought has always been, the PA has a rudder....so all you need is forward/rearward propulsion. I think after that, everyone has their own way of adapting a mounting system. Tom's just happens to be fully concealed/confined under water. This is where my thought of the Minn Kota engine mount motors came in...
With a special adapter, which is what I THINK Tom has made, you could use any trolling motor, which would reduce the cost significantly. My thing is where he says the entire system, including battery, weighs 32 lbs....A typical 12V battery weighs 40. The other confusing part is the duration of propulsion the system is able to keep of several hours....They say the common formula is for every pound of propulsion, you use an Amp/Hr of battery. Maybe he has a smaller battery, and 20# motor
I also think that TGF has the best system, as far as KNOWN ease of installation, adaptation, and performance is concerned. Could be a little cleaner in setup, but that is my personal obsessive compulsive preference