On the same day that Dish's new satellite broadband service kicks off, partner Hughes is upgrading its own offering with even faster speeds. HughesNet Gen4 offers downloads of up to 15 Mbps to the 19 million (or so) Americans who can't get high-speed fixed-line broadband services. $50 a month will get customers 10 Mbps download and 1 Mbps upload with a 20GB