News article about Sigma Designs developing a new Zwave SoC that uses less power, has more memory, and better RF performance.
http://www.anandtech.com/show/6836/sigma-designs-updates-zwave-soc-portfolio-for-affordable-home-automation
http://www.anandtech.com/show/6836/sigma-designs-updates-zwave-soc-portfolio-for-affordable-home-automation