UPDATE: This may be cheaper at DealXtreme, but as anyone actually received one of these from DX?
the forum on DX suggests not many have (please read before voting)...http://www.dealextreme.com/forums/Forums.dx/Forum.11866~threadid.89414
"The Nano USB Bluetooth Dongle is specifically designed for road warriors who do not have embedded Bluetooth functionality on their laptops and hate carrying around full-sized bulky adapters, that are quite often left at home. The Nano USB Bluetooth Dongle provides business travelers with a solution to their problem, making it easier for them to work on the road.
The Nano Dongle makes quantum leaps over other Bluetooth adapters when it comes to mobility and usability. Its design lets business travelers use The Nano USB Bluetooth Dongle in virtually any environment. The Nano USB Bluetooth Dongle has an ultra low-profile which only pertrudes from your computer by 10mm. The Nano Dongle supports plug it and forget it for the ultimate in portability. Once you install the Nano Dongle into your USB connector you do not need to unplug the unit during travel, as its mechanical design does not protrude."
General: Supports up to 7 slave devices
Standards: Bluetooth 2.0
Transfer Rates: (Max) 2.1Mbps
RF-Wireless Frequency: 2400 - 2483.5 MHz for USA/Europe/Japan
Antenna: 2dBi On-Board - Integrated Chip
Receiver Sensitivity: -80 dBm typical under high interference environments
Range: Up to 10 metres / 33 feet (peer-to-peer)