So, we all love our Psion keyboards, right?

I have a dead Psion (half cannibalised, so it's not coming back) and I
really want to take the keyboard out and use it with another PDA.

Anyone know whether I'm looking at a rewiring job, or an IC and
adaptor job?

I'm musing on the idea of squeezing another PDA into a psion
case...ever been done?