Throwing a little caution to the wind over brewing GPS interference concerns, Cricket -- the CDMA budget carrier that specializes in contract-free plans -- has hooked up with LightSquared to deliver additional LTE service through a roaming agreement that'll supplement its own rollout "over the next few years. " All told, the moves should bring it up to technological speed with archrival MetroPCS, which deployed LTE last year (beating Verizon to market, actually) and currently has a pa