Yeah, that's the t-zones plan. T-Mo's dirty little secret is that anybody with a GPRS- or EDGE-capable phone automatically has Internet access, but unless you pay for the $20/mo unlimited plan, their firewall blocks you. They do however, have an HTTP proxy, so you can actually get to the Web w/o paying any extra. But I often use SSH, FTP, IM, and other stuff, so I spring for the extra $20/mo.