Does anyone know if an aftermarket modem module is available for the mini? If not, can this be added at a retail location? Yes, I do have broadband and don't really need the modem for everyday use...but would like to know if the capability is there if it is needed in the future. I have the $699 model and BTO wasn't an option since I wanted to use a corporate discount only available in the brick & mortar Apple Store. Thanks in advance.