I was online via serial last month, but it was using an external serial to ethernet adapter and using JRComm to connect to telnet BBSes. ;-)
Yeah, I think you probably don't need to spend too much time on it, as those of us that still mess with serial pretty much know what we're doing or can help those who need it.
Then again, I'm so old and user-unfriendly, I remember thinking that "this new DNS thing" is a crutch and that if people can't remember the dotted quad, they didn't deserve to go to that site. ;-)
desiv
