I use the Posterous app on my V to cross-post photos to Facebook & Twitter. The app is not movable to SD card, and every post increases its size. My app currently has 9.69MB of data that I can clear, but I don't know what that clears and I don't want to lose posts/pictures. I've emailed the dev with no response on what the "clear data" button does for this app. Does anyone know? Thanks!