I've also been reading this thread for a bit; and someone mentioned not being able to get the remote working for the keychain EaS.
What you do, is your remove the chain and key ring, tie about 6" of the fly fishing line and attach a fishing bobble.
Next you have to take a fork, wrap the handle in aluminum foil, leaving the tines exposed.
Next heat up the tines of the fork, you know the pointy parts, and then while it is still hot force the bobble on to the pointy ends.
Now, this is the most important part, you must find a broken EaS, you need the left Knob, the right one will not work for this mod. You must attach this left knob of the big EaS to the right knob on the keychain EaS.
This is almost important like the last step, you must go to ebay and find a Mac 604 processor, the newer the better but this works with all versions of the 604. You take the 604 and show it to the keychain EaS, while the keychain EaS is distracted, glue the handle of the fork to the rear of the kc EaS.
Now to boot up the ks EaS, tell the EaS you are going to put that 604 in it, it will be so repulsed that it will boot right up. (If you use a G3, G4 or G5 it gets repulsed faster and boots faster).