S.Korea & US Clinch Free-Trade Deal

The just-clinched US-SKorea Free Trade Agreement may help South Korea preserve its increasingly tenuous place between Japan and China, in the international trade arena. Not quite as high-end as Japan, but not quite as cheap as China, S.Korea has been feeling encroachment on its trading space from both its neighbors. Hence, their escape maneuver in the form of this free trade deal with the US. What kind of pressure will that now put on Japan and China? What will it mean for N.Korea? Or India for that matter?