windows on normal terminals

[david at ztivax.UUCP]

While at CMU a couple of months ago, I was told that windowing systems
really do not require much I/O bandwidth.  A student instrumented a
Macintosh and found that the effective baud rate was very low, like
6000 baud or something.  

Therefore, it sounds like nice windowing systems for multi-user
machines are possible.  Anyone wanna make a $ million and start building
some?