Just bought a new 4G iPod. I am using it primarily in my car. Now, I find that having the backlight on makes the screen easier to see, even in the daytime, but it's almost indispensable at night. Battery life is not a problem, since it is connected to the car via an adaptor.
So, my question is: How long should the backlight last before it burns out if I have it on all the time I'm using the iPod? Six months, a year, three years, more, less? Anyone tested this with an older iPod or have any information regarding this?