The Next Generation of Bluetooth is known as the Bluetooth 4.0, this low energy technology expected in market by the end of Q2 of 2010. Bluetooth 4.0 will focus on low-energy technology, which will allow for the creation of sensor-type devices that run off a button cell battery.
The new specification will also utilize both classic high-speed Bluetooth technology, which may be combined or used separately depending on the application. Per a Bluetooth press release, range is also increased in the new specification.