I'm not defending Apple's decision (or lack of action) in implementing this feature in the core system, however I would like to point out to you that Mac OS X has a native VLC client, download that, if you go and play a song or movie, then go to the "Playback" menu and see the "Faster" menu item. Hit it twice for 2x playback speed. This makes voices talk quickly without altering the pitch, therefore there's no chipmunking. This is surely as simple as the "installing 2xAV' as you mentioned above for your PC.

I'm not privy to the list of supported BitTorrent clients for Ipodnova/videoseed, however you did mention Utorrent, and this also has a native Mac client available. I would assume that the Utorrent guys use the same implementation of the BitTorrent core protocol, so you should be able to use it just fine on those sites.

I'm interested in how you achieved this too, please can you share the details with us?

I'm using PPPoE, however my ISP connection is with PPPoA - the trick was to set it up with PPPoA with NAT first, make sure it connects ok, then switch it into bridged mode. I then set up my WRT54GL to use PPPoE, put my ISP account details into the WRT54GL, hot connect, and I was connected first time, with the ISP assigned public IP straight on my router.

Would that work for you?

As for GPS (the most accurate versions) two appliances at opposite ends of a vessel together with suitable calculations would give you the orientation of the vessel. (I have no idea if this is ever done.)

This is done with gyroscopes at each end of the ship. Inertial navigation is fantastically precise, though it does suffer from slow drift which need periodic corrections.