I was wondering if any of you could let me know if this means i can cancel my contract?

Part 1.3 Can AT&T Change My Terms And Rates?:
"IF WE INCREASE THE PRICE OF ANY OF THE SERVICES TO WHICH YOU SUBSCRIBE, BEYOND THE LIMITS SET FORTH IN YOUR CUSTOMER SERVICE SUMMARY, OR IF WE MATERIALLY DECREASE THE GEOGRAPHICAL AREA IN WHICH YOUR AIRTIME RATE APPLIES (OTHER THAN A TEMPORARY DECREASE FOR REPAIRS OR MAINTENANCE), WE'LL DISCLOSE THE CHANGE AT LEAST ONE BILLING CYCLE IN ADVANCE (EITHER THROUGH A NOTICE WITH YOUR BILL, A TEXT MESSAGE TO YOUR DEVICE, OR OTHERWISE), AND YOU MAY TERMINATE THIS AGREEMENT WITHOUT PAYING AN EARLY TERMINATION FEE OR RETURNING OR PAYING FOR ANY PROMOTIONAL ITEMS, PROVIDED YOUR NOTICE OF TERMINATION IS DELIVERED TO US WITHIN THIRTY (30) DAYS AFTER THE FIRST BILL REFLECTING THE CHANGE."

on http://www.wireless.att.com/cell-phone-service/legal/index.jsp?q_termsKey=wirelessCustomerAgreement&...
(( their Wireless Customer Agreement ))