Broadcom's purchase of Widcomm should make it easier to integrate Wi-Fi and Bluetooth together: Widcomm's chips are in a number of major products, the company says, including Dell, HP, IBM, and Sony. An Actiontec Bluetooth adapter that I documented as part of The Wireless Networking Starter Kit chapter on Bluetooth features Widcomm chips--and a quite excellent user interface which I assume was created by Widcomm or a partner.