Has anyone every try to do anything fun with Wheelchair I\O and an Arduino?

I'm in the process of getting a new electric wheelchair and something interesting appeared on the order form: An RS-232 Serial I\O module.

http://www.pgdt.com/products/r-net/rnet-iom.html

The module was designed for simple on-off operation of switches in home automation applications but upon asking some though questions, my vendor found me the I\O technical manual:

https://dl.dropbox.com/u/7547119/R-net%20Input-Output-Module%20Technical%20Manual%20%28SK78814-1%29.pdf

It looks like there is quite a bit of I\O that could be used in a project.

I'd like to do some EL wire, maybe even use joystick output for gaming applications.
(Pac Man on my iPad via the RedPark cable would be epic!)

Hopefully, I can get some ideas and feedback here in the playground.

Thanks,


Jon