If you don't want to use it then slot the bloody thing back into its holder and use your finger.
It has a pressure sensitive, 720p capacitive touchscreen that works with a fine tipped pen. That is why it's a selling point.
If you want to talk about a lack of selling points then get this: Apple's main 4S image on their home page shows the 'crop photo' function. Really? Now that's a selling point to make fun of.
If that was the selling point then maybe they should've mentioned it in the ad. All I saw was, "wait your phone has a pen?" LSD induced mayhem begins.