Two questions:\n\n1. How difficult is it to setup a router (preferably a cheapo from\nRadio Shack) to restrict all users' access to a single site? For\ninstance they can go anywhere on the domain espn.com, click on any of\nthose stories, but can't leave that one site?\n\nShouldn't be that difficult I suppose. Block all ports but 80, then\nconfigure some other setting within the router's GUI. Are any routers\nbetter at achieving this than others? I've done some (very) basic\nrouting on a linux box before, but I'd rather not lug around a whole\ncomputer (we move around a lot) when I could slip a little netgear or\nlinksys number right into my backpack.\n\n2. Hearing about the Starbucks model sort of got me thinking about\nthis. Does anyone know how t-mobile has setup their equipment inside\nStarbucks?\n\nMy hypothosis, which I'm sure is wrong, is that when the TM router\ndetects an iphone (maybe my MAC address range?) it opens whatever port\nitunes operates on, and allows the iphone to access metrics.apple.com,\nwhich is I believe is itunes' music server. So, instead of being\ndirected (exclusively) to the t-mobile registration page, an iphone is\ndirected to the URL of that specific song being played in Starbucks.\nWhen a laptop is detected, it just sends you to t-mobile's\nregistration page, blocking all other ports. How far off am I?