Yes, D&D 4.0 is bringing with it a computerised version of the rule books, a mapmaker, Character generator, virtual dice and everything else you need to have a game of P&P D&D, but remotely.
The program is called "D&D Insider" and although it
looks absolutely terrible
(
see the screenshots here) the idea behind it has been a long time coming, and hopefully it will be robust enough so I can play games with my mates in QLD and SA...
For more information see
Rock, Paper, Shotgun: Cathedral Of The Endless Bear » Blog Archive » Dungeons & Dragons Offline Online