Time for another one of those awesome, put “insert web site here” in the Firefox sidebar tips.  This time around, it is the Google Reader iPhone version we are going goofy about.  Open up this link here:

http://www.google.com/reader/i/

After doing so, drag it to your links bar or bookmark it.  Then right-click the bookmark, and select the Load this bookmark in the sidebar checkbox.  Now save and your good to go.