My only internet access option is cellular. So, I have a cellular usb plugged into a Cradlepoint router. It works fine, but I hate that it is not apple and requires some finessing to work with all my apple peripherals. I know that I can't plug the the cellular usb into an airport extreme directly. However, what if I plug them both into my iMac? Would the airport extreme allow internet access of other devices (iPads, iPhones, iTouch, etc.) via WiFi? In other words, could the iMac serve as the missing link between the cellular usb and the airport extreme?