To answer the first question, yes our ECU's are reprogrammable, but only to a degree. WOT, fuel cut out, and the rev limiter apparently are not. I've never hit the rev limiter cuz power falls off so bad above 6k, but that fuel cut out is a b****.
Rather than screw around with those limitations, I'm also waiting on the AEM. I've seen a Honda unit and it is sweet, worth $1500 IMO. You'll need a laptop too, unless you have a PC in your garage.