Agree with above. Pocket is a last resort. Sometimes you get lucky, and the RO-9 is far better in this respect than, for example, the Zoom H2, due to the slightly recessed mic housings. My view is that, if you're happy putting it in a pocket, then it is a tiny step to get a set of relatively cheap externals and (e.g.) clip them to adjacent clothing. As soon as you hear the quality, you'll never contemplate going back.
That said, what you suggest is infinitely better than a well known Irish "taper" who spends a fortune on tickets and hotels following a well known Irish chanter around Europe, and puts an Olympus dictation machine in the bottom of her handbag, zips up and stuffs it under her seat. People who don't know better lap her recordings up. Seriously.