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With the advance in wireless technology, latest generation of wireless personal area networks (WPANs) can provide a data rate of hundreds (or even thousands) of Mbps at a distance of less than 10 meters. This paper reports the latest development of high-speed WPANs. Systems like Certified Wireless USB, Bluetooth 3.0, WirelessHD, and TransferJet will be reported in this paper. Since ultra-wideband (UWB) technology has been adopted in many high-speed WPANs, this paper also discusses technical challenges and applications of UWB-based WPANs.