Affiliate Marketing Secrets

Okay, I’m not sure I understand this completly. On the iwireless.com coverage map, My area is considered partner coverage. In the I-Wireless fine print, Partner coverage means Roaming coverage, and their affiliate is T-Mobile. And also, they advertise about no roaming charges. So does this mean that I can use there service in Colorado, be covered by T-Mobile, and only pay the $59.99 a month that is I-WIRELESS??? This plan has unlimited text, web, plus 500 minutes. Anyway, I hope I Didnt confuse you, because I am. Thanks for answering!!!