One of my customers pointed me at some exciting news from NXP. They just announced that their new lighting products will be designed to speak 6LoWPAN over 802.15.4. That means that the Zigduino will be able to talk to them using a package like Contiki.
Contiki has not yet been ported to the Zigduino platform, and I'm currently interested in finding someone to do the port. It claims to be readily portable, and it already support the AVR Raven platform, so the port should not be that hard. If you're interested in helping with that effort, please drop me an email.