By Sean Ludwig - The Washington Post
The dust is settling on yesterday's news that AT&T has given up its T-Mobile acquisition plans, and it turns out the dust is quite expensive.
Because its proposed $39 billion merger fell through, AT&T now has to give up piles of cash and benefits to T-Mobile. AT&T will enter into a
7-year 3G roaming agreement that will boost T-Mobile coverage and it has to give up a valuable package of AWS mobile spectrum that covers 128 Cellular Market Areas (CMAs), including 12 of the top 20 U.S. markets. Overall, the agreements will boost T-Mobile's blanket coverage from 230 million to 280 million Americans.