The latest rumor on an Apple product comes to us from the just released Thunderbolt-equipped iMac which apparently hints that Apple will release a backlit Wireless Keyboard, finally right? In the new iMac's system preferences keyboard settings, an option is found to enable "illuminate keyboard in low light conditions". This option was never available on past iMacs and Apple desktop computers. It's only available on Apple's portable 15" and 17" MacBook Pro. 

New Macs always bare an updates firmware and software which points to this actually being something very plausible. Once Apple releases the backlit Wireless Keyboard, a new software update will be available to other Macs in order to support it. A backlit external keyboard is a much asked-for product by Apple consumers.