Jeff, here is the current fuel map (VEBins) and advance maps (advTable) for a stock 22RE motor.
Note my base timing is 5deg BTDC.
I think the fuel map is spot on.
The timing map I'm still tweeking with, I've got it down to within 1-2 degrees.. Most people wouldn't notice a difference from a stock ECU, but I've got a touch of knock when running AC, coming off low idle, and accelerating.
I haven't tweeked the high end (rpm) of the map much...




I don't consider anything I've developed "proprietary". I'm happy to provide the pin out between the toyota connector and megasquirt. I will resell the harnesses - at least I'm going to sell 1 or 2 and see how that works out. I have a good job and it's simply not time vs income effective to spend my time on this.. I can't give them away, but I really don't want to charge big money for my time. It's a hobby.. How many hours have you spent answering questions and assisting people with their toyota stuff?

To answer your question:
There are restrictions on the board itself (copyrighted) and ECU. You're not allowed to make your own board (for resale) based on the current design. You can do whatever you want with them for personal use. This limitation prevents multiple unofficial board versions, contributes to stable design, and contributes to well documented modifications.

Resale:
Because the boards can't be copied (legally) and are available from a single documented source, distributors have to buy batches of 10 of them to become a "distributor". The only way to get kits now is from a distributor.

Distributors are allowed to resell assembled boards. There are some limitations, such as using non-origial ECUs and distributors that use non-original parts may find themselves out of the distributor business.

I'll be honest, there is at least one distributor that knew these boards well enough to provide detailed instructions on how to do it. If you're making a living at this, it's not in your best interest to disclose how to modify boards for a given application when you can charge a premium for those modifications. This sort of activity goes directly against what the creators of megasquirt are trying to accomplish, but it does happen. I found this to be quite frustrating more than once.

If you're asking me if someone can resell megasquirt, the answer is yes. You're essentially selling a configuration and assembly service as long as you use the original boards and components. Resellers can't do things like copy their board design, replace the ECU and resell for an increased profit.. IE source the major components somewhere else or develop them from scratch. This is the main "limitation" on resale.