Was thinking of a cool idea... then came up with another!

[persia]

You don't need the 1800 quid dongle, just the XMOS xcore and a USD 100 programming device.

http://news.cnet.com/8301-17938_105-20007630-1.html

I am not a expert in stuff like this but I think Xena can only automatically manipulate signals but is not a real controller (as I understand it). I assume he is interested in doing something on a amiga-platform so "Xena" would limit it to "X" hardware.

I have looked inside your link... might be that it is possible. But then using a PC would make more sense.