I really liked this hack. I played up until Ecruteak, thoguh I probably didn't see all there is to see, I did like a good number of the features
The simulation room was neat. Any way to increase the amount of computers the farther you get in the game? Maybe an item you find or buy could let you get into another room with more or something?
The Pokemobile room was pretty fun too, I agree that there should be triggers to change the people in there, have more people battle you even if they are just normal trainers. You could make SOME of the pokemobile/simulation trainers be pretty difficult fights, too.
Also, I tried losing to Tracey/One of the simulation people just to see what happened, and I was pleasently surprised to see that they said something to you. It's pretty interesting.
Those were definately the most fun parts of the hack, though I did like some of the other changes too.
Anyway, can't wait for the next beta!