Is it really fall? We can't say for certain that this is what Dan Hesse was referring to when he told us face-to-face that something spectacular would be coming our way a bit later in the year, but Clearwire definitely just announced its intent to add "LTE Advanced-ready" technology to its 4G network. In what'll likely go down as the most shocking mobile news this side of the proposed T-Mobile / AT&T merger, America's biggest WiMAX fan has finally caved to the realities of the next-gen wireless war: LTE's