Could it be? Is AT&T addressing bill shock by simply trying to make international data roaming costs reasonable? From the looks of its new Data Global Add-On deals, that might be the case. The baseline price is up from last year at $30 per month, but you'll get 120MB of data for your trouble -- an amount that used to cost $50. The next step up not only costs less than before, at $60 versus the old $100, but ups the data ever so gently to 300MB in the process. AT&T's maximum allotment is still a relatively modest 800MB, but at
