AIS Receiver USB dongle

This AIS receiver is cheap , consume almost no power and is simple to connect (USB dongle):
http://www.radargadgets.com/buyais.htm
It works on Windows with a supplied driver and is recognized directly by my Linux kernel 2.6.35 (Ubuntu 10.10) as /dev/ttyACM0. Output is NMEA readable by OpenCPN.
Latest news, the company producing this item is no longer on the market.

Other solution :
Resuts as good as when using my FT857 + sound card + AISMON under Windows or FT 857 + sound card + GnuAIS under Linux.