Silvio Rizzi made the iPad and Mac versions of Reeder free to use in the wake of Google's plans to shut down Google Reader, but he left the iPhone app at its usual $3 price -- and its fate in the air. Existing users can now rest easy, as Rizzi has pledged ongoing support for the smaller screen. The current edition of Reeder for iPhone is now free to use, and an already-submitted 3.2 update will bring support for a