I have heard and only from one person who has a G5 iMac, that the Apple Wireless keyboard doesn't conserve power/go into a sleep mode and so drains batteries fast. He actually turns his keyboard on and off all the time to save the batteries. I know that most Bluetooth mice including the Mighty Mouse conserve power by going to sleep. Does anyone have any experience good or bad with the Apple Wireless keyboard from a power standpoint? Would you recommend it?