But I think that RTG and TCP/IP would be two decent things to have opened up. Not only for classic amigas, but for the whole Amiga ecosystem.
As regarding TCP/IP, someone might have luck contacting Olaf Barthel for his RoadShow/Roadster TCP/IP stack. While the former was released with OS4.x, the latter never saw the light of day probably mostly due to Harald Frank being unable to come up with a GUI. Maybe Olaf is willing to open source it and make it available for Classic Amiga and/or other systems. Might be worth a try.
