> I'm looking for a local supplier of a PC/device suitable for use as an
> industrial data logger/controller.
Bluewater systems
http://bluewatersys.com/
sell ARM-based development kits, that run Linux out of the box. They are
quite powerful devices, and have many ways of communicating with the
outside world. Alternatively, you could rewire an OpenMoko
http://www.openmoko.com/
to operate your devices ☺ If you want something smaller, but still open,
Arduino
http://www.arduino.cc/
may do what you want.