Nod, I have one of the smaller-and-without-saws Victorinox cybertool thingies - Simon, we were talking about meeting up in September anyway (and I'm leaving the country on Friday :) ) - I'll have it with me then if you want to have a play around with one and are prepared to wait that long?
Otherwise gerald_duck has the larger version (with saw etc) on him almost all the time, and you see him in the Carlton. And ThinkGeek sells them.
Otherwise