Bluetooth 3.0 specification will be released in 2009 (at which point its feature set will be frozen), with devices starting to arrive around 2010. Bluetooth 3.0 will likely include features such as ultra-low-power mode that will enable new devices, such as peripherals and sensors, and new applications, such as health monitoring.
Bluetooth originated as a set of protocols operating over a single wireless bearer technology. Bluetooth 3.0 is intended to support three bearers: ‘classic’ Bluetooth, Wi-Fi and ultra wideband (UWB). It's possible that more bearers will be supported in the future. Wi-Fi is likely to be a more important supplementary bearer than UWB in the short term, because of its broad availability. Wi-Fi will allow high-end phones to rapidly transfer large volumes of data.
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