Shares of $5.1 billion U.S. prepaid cellular operator MetroPCS (PCS) are up $2.52, or 22%, at $14.04, having gained steadily through the morning, after Bloomberg‘s Aaron Kirchfeld, Cornelius Rahn and Matthew Campbell this morning reported that German telecom giant Deutsche Telekom AG (DTEGY) is close to engineering a “transaction” with the U.S. carrier to add to [...]