i had bestbuy install the smartstart the day it came out. it's pretty cool, but the software is buggy sometimes, and currently it only provides one way communication. (if you start the car from your iphone, there's no feedback from the alarm system to the phone to let you know if it's indeed running or not....or whether the doors or locked or whatever).
i love it, looking forward to the 2 way communication update that supposedly is to come out soon....
only complaint is that the installer was NOT able to integrate the smart start with the factory alarm ARM / DISARM wires. that is, I still have to carry the key to arm and disarm the factory alarm. Also, he had to install a bypass box and mutilate one of my keys
has anyone integrated the factory alarm ARM / DISARM with a remote start????