I am the sole PC and Blackberry user in my household where everyone else is on Macs and iPhones. I am considering going to an iPad for travel but am concerned that it only connects using WiFi. I do not want to lock into a data contract to use 3G - it's not cost effective. When I travel, a number of hotels have no WiFi in the rooms but do have hard-wire connections to use the internet. Is there a USB accessory that allows hard-wire connection to the internet for the iPad?