http://evdo-coverage.blogspot.com/2005/09/globalaccess-is-verizon-v620-and.html it does exist. the problems is that unlimited access is only offered in the U.S. other countries have a 100mb/month cap or a $.03/kb charge. that's not practical at all given the high data transfer needed for trading. hope that this service will mature and become more workable down the road.
anyone know if there's a broadband card in europe that offers unlimited data. need not be multi-country but preferable.