Have a look at DigitalStrom http://www.digitalstrom.de/index.php?id=115&L=2 (in English)
At ETH Zürich (Swiss Federal Institute of Technology) they developed a microcontroller that can be directly attached to 220/110V power lines.
At first they will put the chip into insulating screw joints but they are also talking to makers of household appliances to incorporate them directly.
http://www.youtube.com/watch?v=viXnOxeX6Uk
They will publish the management software as GPL
I believe that they have a very good chance to take off in the market.
The real first netbook was the Atari Portfolio from 1989....
8088 based and running DOS.
http://en.wikipedia.org/wiki/Atari_Portfolio
I have recently browsed through the latest SIP RFC looking for ways to be more NAT friendly for VoIP.
What I found is not very conclusive: The latest RFC indeed tries to push TCP as default transport for SIP (Yessss signalling links are making a come back) but the use of TCP connection is left to a lot of ambiguities.
The only problem with being a man of leisure is that you can never stop and take a rest.
