Sanyo is taking another stab at the Katana clamshell, which is likely bound for Sprint. The Sanyo SCP-6650 Katana II is the same thickness as its predecessor, but shrinks 2 millimeters in width and 4 millimeters in height. It features a larger external display which is positioned slightly lower on the front of the phone, and a 2.5mm headset jack, based on the pictures. It carries over the camera and Bluetooth and has an internal antenna. Little else is revealed in the filings, and neither Sprint nor Sanyo have discussed this new phone yet.