Verizon and T-Mobile today said they will swap spectrum licenses in 218 markets in a deal that will also see VZ pick up an undisclosed amount of cash from the smaller, beleaguered operator. T-Mo will gain licenses covering 60 million people, which will help it shore up the LTE network it plans to light up next year, as my colleague Kevin Fitchard writes this morning. But the key factor here is that T-Mo will drop its opposition to Verizon’s proposed spectrum deal with a trio of cable operators. Federal regulators are taking a long look at that agreement, which comes hand-in-hand with a pact enabling the two sides to market and sell each others’ services. So Verizon has eliminated at least one opponent in its fight to have the deal approved.