OK, I read the link. I'm not trying to be a Harmony fanboy, but I think that the 890 and any ZWave switches/dimmers/whatever can do the same type of thing -- natively control, via RF, those switches, in various rooms, implement "scenes", set the lights to whatever predetermined values for each "activity" (e.g., dim the lights when you select "watch a movie"), etc.
I have an 890 controlling a single switch, but I can add as many as I want and create scenes. I can control it from throughout the house, and don't need any converters, etc. I can control that switch or others discretely via RF.
Am I missing something here?
Crestron is definitely cool stuff, and we used it at my previous workplace. However, for the normal consumer it's too expensive or complicated.