Very nice … Open Source drivers for ZigBee? 
This is going to even further propel the standard forward.  I
believe that the recent adoption of ZigBee by even the local companies
here in Utah – Control4 and MaxStream – coupled with projects like this
are going to generate a lot of momentum.

The Linux Wireless Sensor LAN Project 0.1. 802.15.4 Linux drivers and utilities. [freshmeat.net]