To make home automation devices compatible with existing hubs (like smartthings).
http://build.smartthings.com/enabling-the-community.html#WhatIsTheThingModule
The planned 802.15.4 shield may not support the zigbee protocol (like xbee series 2).
http://build.smartthings.com/enabling-the-community.html#WhatIsTheThingModule
The planned 802.15.4 shield may not support the zigbee protocol (like xbee series 2).