I started off using t-mobile and was thrilled that it worked with the nokia 6133. Shortly after using it - I was bummed about the 144 kbs speed. I just switched to Sprint and got a Free MOTO Razr 3vm and in the suburbs of Baltimore - I am getting 618 kbs up and 61 kbs down. This is a much better experience.

I'm not sure if I like the RAZR 3vm. It is not as user friendly as the nokia 6133 was.