I got started with help from Reverse Engineering Zigbee Communication (AlertMe / IRIS) and Desert Home.
I am currently working on decoding the data from the contact sensor and IR motion sensor but also including information on the SmartPlug obtained from the above sources.
Configuration
The library that I am creating for Iris devices is written in Python 3. I am planning on placing the source code on BitBucket in the near future.
Digi Zigbee Links