The Amstrad E3 is a cheap (£29.99 at the time of writing) videophone, which runs Linux.
More info:
- ["E3 IO Ports"]
External links:
Simple Serial Cable:
In case other people are as useless as I am at building serial cables - here is the pin out I'm using to connect my E3 to a 9-Pin D serial port on my PC.
Pin2 -> Tip
Pin3 -> Ring
Pin5 -> Sleeve