Looks like racking up those loyal points may just pay off in the near future, as Ma Bell's rolling out a new loyalty program dubbed AT&T Plus. The free service -- which is only available in Houston, Colorado and Minneapolis at the moment -- will let customers get tidbits such as a "personalized customer experience," with access to a special 1-855-ATTPLUS customer service line. Additionally, AT&T Plus users get a 25 percent discount on accessories (sorry, no iPhone or iPad add-ons) as well as waived activation and upgrade fees. AT&T's yet to say what you'll need to get a Plus party invite, but we'd imagine that staying away from