Hello,
No need to go buy an expensive dock. Just get yourself some hard construction paper or high gloss thick paper and make yourself one. I did.
Here's how mine looks like:
http://img823.imageshack.us/img823/4040/img0060ka.jpg
http://img84.imageshack.us/img84/482/img0059bf.jpg
Note that I had done minor tweak to my stand to strengthen its support. See below for details on that.
Here is where I got the design from:
http://www.dessinemoiunobjet.com/iphone-and-itouch-paper-stand-dock/
There's a video after all the photos.
If you look at the photos on that site, you will notice that there is a missing bracing connection in image #4 down the page. In my first photo, you can see it holding the back support to the center of the structure. This is the mod. It's simple really. The original design tells u to cut away the strips. I simply keep these strips and make them into bracing connections.
Here's the diagram of the fix you can draw on your print out:
http://yfrog.com/0bstandfixj
TIP: Print out diagram onto a regular printing paper. Then tape the design onto your hard construction paper and then use an x-acto knife to trace the lines to be cut.
TIP2: Do not use thin paper to make this, it will be too weak to support your iPhone's weight.
Fold and enjoy!