ZigBee sits in the same frequency band as WiFi, so it does actually clutter it.
Edit: oh and it has already taken off as much as it will, the ZigBee alliance is working on a an ipv6 based standard.
Edit: oh and it has already taken off as much as it will, the ZigBee alliance is working on a an ipv6 based standard.
It's a really nice standard, I hope it takes off.