Analyst sees Intel technology that uses low-power Bluetooth to signal when Wi-Fi needed (3rd item): Rob Enderle visits Intel Labs and sees what he calls a personal data repeater which combines Bluetooth (low power, short distances, low speed) with Wi-Fi (higher power requirements for longer distances and higher speeds). The implementation he describes is a portable device that relays information from an appliance like a watch or PDA; the implementation sounds rather horsey. More likely, you'd see it used in a cell phone or PDA directly that has (in the future) single chip Bluetooth/Wi-Fi and activates the right circuitry at the right time. It's a clever idea to use the low-power signaling, but it's also possible that a Wi-Fi transceiver with multiple power levels could act in the same capacity.
