When we last checked in, Amazon was thought to finally be pushing for full music rights in its Cloud Drive and Cloud Player services. It might be a smooth operator at the negotiating table: subsequent tips to CNET maintain that the top four major labels (a currently-independent EMI as well as Sony, Universal and Warner) have all signed deals that will let Amazon offer the same scan-and-match music downloads and streaming as Apple's iTunes Match. The pacts would let Amazon offe