cheapo MP3 player, what with unusual designs, promises of salvation from paper, and now diving prices. Enter the Astak Mentor. This series of readers comes in three sizes -- 5-, 6-, and 9.7-inch -- and is based on either Linux or Windows CE. So what's new here? A sub-$200 price tag for the 5-inch version, touchscreens, Bluetooth, and WiFi. Those three latter features come standard on the 9.7-incher, and are optional on the smaller two. Look for them in October from less-than-$200 to $350, or until someone else comes out with a $99 reader.