All good guesses guys, but the real reason they got rid of the eye is because the battery beancounters determined too many people were noticing the eye was bad before the warranty expired, driving up free replacements. Eliminate the eye, and there's no way to know the battery is on its way out until it doesn't start your car, 4 days after the warranty expired. $100+ for your "pro-rated" coverage, ka-ching!
Ask me how I know....