as you al know, people have come up with a lot of far-fetched ideas for the iPod--from bluetooth file transfers to airport extreme compatibility to an internal speaker. but how about something that apple really should put in, just as pure common sense innovation based on the rest of their product line? wouldn't it be cool, i was just thinking, to have an ambient light sensor to control the backlight? does anyone know how big these are? i think apple should definitely incorporate this feature onto the iPod.