I took my phone off charge last night around 10:00 PM. Its 3:45 PM of the next day now. I'm still around 90% charge. Listened to music on the way to work via bluetooth to car stereo, sent a few texts, a call or two and some light browsing.
My old device would take a major hit to the battery running the bluetooth audio. Didn't even put a dent on this phones battery.
Though I believe there does exist an issue with some devices I gather to say that many are simply running their phones down with overuse. I would expect to see many of the people here with battery issues to go away once they have setteled in with their new device.