Nikon's new raw editor has been released and it's free. It is meant to replace the old Capture NX 2 but does not have the control point feature of its predecessor. I have not tried it yet to know how it performs. Nikon has said the don't plan on supporting the old Capture NX 2 now that the NX-D has been released.
http://nikonimglib.com/ncnxd/