By now, you probably already know the MobiBlu B153's claim to fame: it's got a battery life that is so impressive that it's in the model number. That's right; this flash player will last about 153 hours, or over six days of continuous use. That might be great if you're off on a camping trip or too lazy to charge your player more than once a week, but how about the player's other features (you know, like its UI and how it sounds)? CNET checked out the B153, and found that, other than the battery life and its ability to automatically download podcast subscriptions, the player is just so-so. Its interface is strictly folder-driven -- forget about sorting by artist or genre. The screen is also small, and support for DRM is limited to purchased WMA files (no subscription support). Oh, and CNET's testers found the battery life to be a mere 146.5 hours. Hey, we're not complaining. That'll still give us six full days of music.