For the record, I did talk to Mark about this at the Ohio meet because I want a similar function, to run TTSClock from a popup menu. He seemed to indicate that it might be possible in the future, relating to having hijack be able to execute commands from input on the serial port. This in turn would then be accesable via /proc, thus a few more lines of code and buttons could be mapped to run programs.

Mark, am I remembering this right? I think Derrick might have heard this conversation as well...