[M100] Model T Navigator?

[Hiraghm]

In Issue December 1990 of Portable 100, there's an article on page 14 
about using your Model T as a Trip Navigator. It's based on waypoints 
you designate your rate of travel and fuel consumption, and it makes a 
straight line graph to measure your progress (I can't help thinking of 
The Oregon Trail and The Organ Trail video games...)

I have an old Streets and Trips 2008, that came with a GPS receiver, 
with a USB plug on the end. So, typically, I wonder to myself if there 
would be some way to connect the USB to my serial port, and then use my 
Model 100 as a *real* navigator. Primitive, yes. Slow, almost certainly. 
But, very very very retro-cool.

Anyway, just thought I'd throw that idea out there along with the 
others. I only bring this stuff up in case it inspires others on the 
mailing list in developing their current or new projects. If someone 
finds it annoying, let me know and I'll shut up.