AT&T (NYSE:T) is expanding its 45 Mbps U-verse Internet service to five more states. In addition to the 17 states where the new speeds have already launched, U-verse High Speed Internet Power will be available to eligible residential and small business customers in selected markets in Arkansas, Kansas, Missouri, Oklahoma and Texas.In other AT&T news, the telco is launching its Digital Life smart home service in Milwaukee, Charlotte, Hartford, Jacksonville, Oklahoma City and Tulsa. Including the new markets, Digital Life will be available in 45 markets, with plans to launch the service in up to 50 markets by the end of 2013.