Now Playing: 12-20-11 Marketplace Tech Report

The news of the death of the proposed wireless mega-deal should not have surprised anyone. But now what? AT&T will have to write a $4 billion check to T-Mobile, a lot less than the $39 billion the deal was expected to net T-Mobile USA and its parent company Deutsche Telekom. And it's not positive T-Mobile can survive beyond this. Also on the show, a team of British researchers have developed an algorithm for determining which songs are likely to be chart-toppers.