Largely supported - working with graphics, screen and sound, though this requires kernel compiling.

The following is still not supported:
hotkeys, TV-out, CIR, TV-tuner
See the W1N forum for more details:
http://linux.w1n-forum.net

Works GREAT with Ubuntu Dapper. A few workaround to enable some of the Fn buttons, but all the hardware is fully supported (especially synaptics touchpad, ATI Mobility, WiFi and power managment).

One can even install some programms to monitor and manage temperature, fan speed and CPU rate (see user forums)!

Highly recommanded.

Everything works perfect under Ubuntu Intrepid, except Power4Gear keys at the right side.

Haven't tried TV tuner now IRDA controls.