[Ethyl]

I wonder what these changes do or do not do to oil production around the world.

I wonder what it will do to the GPS, those pre-quake, do those need to be updated, or will the satelites change it for us? I have software in my GPS around the world, was the change miniscule enough not to matter, or do I need updated software?

[Myrddin]

I wonder what it will do to the GPS, those pre-quake, do those need to be updated, or will the satelites change it for us? I have software in my GPS around the world, was the change miniscule enough not to matter, or do I need updated software?

The GPS satellites can receive updates from ground stations to adjust ephemeris data. I just received notification from Delorme with updated magnetic declination files for all my mapping products (Street Atlas USA 2003-2004). The north pole has moved enough that current software products and printed maps show an incorrect magnetic north deviation. Those updates were announced BEFORE the quake.

[RadioAstronomer]

I wonder what it will do to the GPS, those pre-quake, do those need to be updated, or will the satelites change it for us? I have software in my GPS around the world, was the change miniscule enough not to matter, or do I need updated software?

Nope. You do not need to change software. In fact GPS time is drifing away from UTC time. It is currently 13 seconds off.