Bluetooth SIG and UWB will work together
The Bluetooth Special Interest Group (SIG) today announced its intent to work with the developers of UWB to combine strengths of both technologies. This will allow Bluetooth technology to meet high-speed demands of synchronizing, capable of transferring large amounts of data, as well as enabling high quality video applications for portable devices. UWB will benefit from Bluetooth technology's manifested maturity, qualification program, brand equity and comprehensive application layer.
The purpose of the cooperation agreeement is to work out an architecture that allows devices to take advantage of UWB high-speed for scenarios that require it. Bluetooth will still be important to maintain backward compatibly with existing Bluetooth devices and future ones, which would not require the high-speed data rate.
Source: Bluetooth wireless