Great Package! Definitely useful for multicore CPUs. I have a 6 core AMD. It's such a pain if MATLAB can't run parallel.
I have a demo tip for newbies:
If you want to see the effect, make sure your function have to run at least several times on the input cell. If your function only has one input, all the slave sessions will be doing nothing because the function is already running on master. You'd probably want to make your input into segments to make all the slaves run simultaneously.