I (almost) concur with mochi. There's a different version of the Belkin case on sale at Target (Westminster, CO) for $14.95. It has an outside pocket where I plant to insert a piece of hard plastic to protect the screen even more.
This is the link to the K3 version:
http://www.amazon.com/Belkin-Pleated...6159322&sr=8-4
The one on sale is designed for the K2.