Hey guys. Thank you all who managed to contribute to the current device handler. I took the plunge and bought four of these baddies. No offense to the people who worked on the synchronized dimming, but the latest Smart Lighting SmartApp update has made your code superfluous. The latest update has added a mirroring function. You basically set the bulbs in your room to follow the on/off state and dimming level of the Tradfri dimmer. I was very impressed by its responsiveness.
Here’s a thread where the function was discovered.