Didn’t Apple CEO Steve Jobs recently promise that Apple was going to phase out LCD screens on its Macs in favour of more environmentally friendly LED screens, like those introduced recently on the MacBook Pro?

Just months ago Apple CEO Steve Jobs published a letter outlining his plans for the company’s green future – after being hassled by Greenpeace.

At the time he announced that he had a plan to make Macs greener, and that one of the aspects of that plan was to stop using LCDs.

"We plan to introduce our first Macs with LED backlight technology in 2007. Our ability to completely eliminate fluorescent lamps in all of our displays depends on how fast the LCD industry can transition to LED backlighting for larger displays," he wrote.

"Apple plans to reduce and eventually eliminate the use of mercury by transitioning to LED backlighting for all displays when technically and economically feasible, " he added.

So why does the new iMac have an LCD screen? Samsung’s got a 20- and 24-inch LED backlit LCD display, so they must be available.

Refresh your memory of what Jobs said in the letter here.