Looks like California was only slightly ahead of the curve.  In news last night, Australia has decided to ban regular light bulbs by the year 2010.
 
http://www.abc.net.au/news/...

Federal Environment Minister Malcolm Turnbull is announcing today that conventional, incandescent light bulbs are to be phased out over the next three years and replaced with energy-saving globes.
He says this will save up to two million tonnes of carbon dioxide emissions in Australia over the next few years.
Mr Turnbull has told AM that new energy standards will be introduced.
"It'll be illegal to sell a product that doesn't meet the energy standard so that'll happen by 2009, 2010, and so by that stage you simply won't be able to buy incandescent light bulbs because they won't meet the energy standard," he said.

California legislators have considered this move as well, though I can see it being truly enforced in Australia since they will be banned from the whole continent.  Of course, there will probably be special cases allowed for medical use, theaters, etc.  Still, by the account of the Australian government, a world wide shift away from incandescent could save as much as 10 percent of the world's energy use.  Since they also are not proscribing CFL's, they are also opening the door for LEDs to come on the scene.

Funny to think about a future where kids build an incandescent light in science class for historical perspective.