Not to be caught cold by recent price cuts from ATT, and to keep up with T-Mobiles relentless UnCarrier marketing blitz, Verizon has slightly tweaked its More Everything plan to reward its more data-thirsty customers. As of now, subscribers to the companys Edge early-upgrade program who sign up for 10GB or more of data can add additional smartphones to their plan for $15. Thats $5 less than the $20 it originally charged.