RSS reader with Instapaper or Readability integration? One of my main information stream inputs is RSS feeds. Yet many link to long articles on strangely designed web pages, so I regularly read using Instapaper, or Readability.

Is there a RSS reader with built-in integration with Instapaper?

I want to quickly scan lots of feeds, and hit one button to send to Instapaper. Yes I know that I could use Google Reader, on a browser, with the Instapaper extension installed. 

I find the web interface of google hard to scan quickly, and I would prefer an offline RSS reader.

thanks
Reeder (for both the iPhone and Mac OS) can send articles to Instapaper.