The effort to prevent Verizon Wireless from its purchase of AWS licenses from SpectrumCo and Cox just became a bit more intense, as several opponents to the deal have now banded together to form the Alliance for Broadband Competition. The coalition includes T-Mobile and Sprint, along with advocacy groups such as Public Knowledge, the American Antitrust Institute, the Rural Cellular Association and the Rural Telecommunications Group. Today, the newly formed alliance held a press conference in which it called on the FCC and Department of Justice to block the transfer, which it said would lead to an "excessive concentration of spectrum" held by Verizon Wireless. While it's not much of an olive branch, the group similarly suggested that it would support the deal if Verizon were to divest some of its spectrum holdings, establish roaming agreements and agree to a backhaul pricing structure. As you may recall, Verizon Wireless estimates that it'll exhaust its network capacity by 2014. Regardless of how this $3.9 billion proposal shakes out, it's rather clear that something's gotta give.