Would there be a reason that when I connect to the internet via the usb/ethernet adaptor that the Air would run hotter than through the WiFi connection. Perhaps it is just warmer today but I get the feeling that the CPU temp and fans kicked up faster using the ethernet connection. I would think the opposite true but maybe if the ethernet connection is considerably faster it is working the system faster as well. Perhaps there is no link. I always believed that a direct internet connection through a port was less stress on a machine. Any thoughts?