NEC announces a tiny PC dubbed US110. The NEC US110 supports virtual PC screen transfer and high-speed video rendering for video conferencing.

The thin-client PC measures only 150x94x30.4mm and weighs 350g.
5 USB 2.0 ports, VGA, microphone input, line-out terminals (stereo mini-jack), keyboard, and Gigabit LAN adaptor are the available interfaces of the US110. The US110 thin client supports RDP5.5 (Microsoft Windows Server 2003 TerminalService / Microsoft Windows XP RemoteDesktop connection and ICA10.0 (Citrix Presentation Server 4.5).
The price of the NEC US110 is 49,000 yen (~$416) in Japan. NEC is also releasing the US110 outside of Japan.

NEC also announced a thin-client notebook dubbed US60. The US60 has a Celeron CPU, 512MB RAM and a 12.1 inch screen.
Via this NEC press-release (Japanese).