I just tested to play JCloisterZone for the first time and just... wow!
But there was one thing that I felt was missing and that is to be able to set the "speed" of which the computers play their tiles. Because when you play with more than 1-2 computers there is a lot to take in quickly when all computers play their tiles in less than a second.
So some sort of checkbox or slider option when initializing a game would be great for controlling the play speed so you get a chance to see each computers' turn better.
I haven't seen the code so I can't say for certain, but it shouldn't need more than some sort of "sleep" function and an if(comp_sleep == true) {call sleep function;} in the play loop.
Btw, what language is it written in and where can I peek at the source code?