MobiBlu has now rolled out the DAH-1900, which comes with a new claim, that of the world's longest battery life. According to MobiBlu, the flash player can run for up to 153 hours on a charge. Of course, to achieve that kind of endurance, the player doesn't include the ability to show videos or pics, though it does include an OLED display, an FM radio and support for MP3, WMA and PlaysForSure. A 2GB comes in at $275, which seems somewhat steep for a flash player.