MobiDuck,
You might find a Java or Web based reading app -- cloud based apps. Unfortunately it looks like the Naite is a proprietary OS, so finding locally installed apps for your phone might be hard.
Beyond that, there might be a few hanging out here who know something about phone based reading, but this corner of MR focuses more on Sony's dedicated readers, and not so much the S-E phones. You'll probably have better luck over in the
Alternate Devices Forum. Hate to say look somewhere else, but I'm not sure you'll find what you're looking for here.