If they impose tiered pricing, I certainly hope they work out a way to pool data traffic as the do minutes.
Having a family plan with at least 2 smart phones in addition to other phones, it would leave a really bitter taste in my mouth to get dinged for data overage on one phone while paying for unused capacity on another.
If data follows the pattern of minutes (which it may well eventually), "shared data" would actually result in people buying more data than they need.
