IPv6 coming to a root server near you
IPv6 (Internet Protocol version 6) is the future successor of IPv4. IPv6 is becoming increasingly necessary as the world runs out of IPv4 addresses (like 220.127.116.11). IPv6 has a much larger address space since it uses 128bits per address instead of 32bits like IPv4.
Unlike IPv4 where you're often provided one public IP address that you have to share with many devices, IPv6 eliminates common network configuration headaches like network-address translation (think: port forwards) since everything in your house from your computer to your Xbox to your Tivo could have a unique public IP address.
[Via BBC News]