Completely understandable, my only counter is that everything we do is open source, and freely available, now and forever. We want people to use our stuff; without reservation.
Are you okay with the GPL? That's what MiniVNC is currently licensed as. It has a little bit of vestigial code I borrowed from the now-obsolete ChromiumVNC, so even though I wrote the majority of it myself, I'm not sure I'm at liberty to change the license.
That said, the license issue is moot if a MacTCP compatibility layer were in place