According to an article at geek.com, Fujitsu reckon they are going to demo a PC at CeBIT 2009 which will idle/sleep at zero watts ie: no current draw whatsoever.
The article speculates that this system will still be able to interact with LAN/PAN devices while ‘asleep’. This definitely runs into ‘believe it when I see it’ territory for me. It’s not that I don’t want Fujitsu to have accomplished this; computers definitely need to draw much less power when idle, but it’s a hell of a technical mountain to climb.
The whole notion of a NIC being able to respond without power only when polled intentionally just seems ever so slightly far fetched.
If you’re going to CeBIT on 3-8 March 2009, you’ll probably be treated to a demo of just how this works. Still I hope they demonstrate the device as coupled up to a proper metering device. I wouldn’t want to think that this is all just marketing and spin 😉