Look at ZigBee and you realize what is wrong with Bluetooth. With Bluetooth turned on, my mobile starts sucking its battery like a vampire feasting on a virgin's neck. A ZigBee radio instead will get up to 3 years of battery life out of a simple alkaline battery.
The comparison might not be entirely fair. ZigBee after all is designed for sensor networks that have very predictable data patterns that allow for efficient power management. Bluetooth requires more bandwidth, which in turn requires more power.
ZigBee nonetheless is starting to eat away at the bottom of Bluetooth's market. After years of silince, the ZigBee Alliance yesterday for the first time publicly spoke about the technology's specifications at an Open House in San Francisco.
The organistion is sending a clear signal: they have put it out there and it's ready for anyone who wants to apply it in their products. Let the ZigBee hype begin.
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