For $15 a month, the DataPlus plan offers smartphone customers 200 megabytes of data. If customers exceed 200MB in a monthly billing cycle, they receive an additional 200MB of data for $15 until the end of that billing cycle. For $25 a month, consumers get 2 gigabytes of data. And if subscribers exceed 2GB during a billing cycle, they will be charged $10 for an additional 1GB of data.If you want to get another glimpse of Griffey, at least before the Mariners hold the invetiable send-off celebration, youd better get ahold of the kids game schedules.But adding such a low-cost plan could potentially put even more strain on AT&Ts network since part of the rationale for revising the pricing plan is to attract more customers But Entner said that this should not present a problem to AT&T.