I purchased my TB on the 17th and like most other early adopters I was greeted with horrid battery life. Similar to gas mileage on a lifted 4x4 truck. Today however is a different story. I unplugged it around 8:40 AM it is now 8:20 Pm and I have 29% remaining and I haven't plugged it in once today!! Past days I would be around 20% and that would be after it had been plugged in for at least half the day. I blocked blockbuster and switched away from my live wallpaper. Live Wallpaper was only using 5% but the display showed 49%. Now display shows 43%. So i'm not sure what the big difference is since I blocked blockbuster Saturday...but it is appreciated and I hope its a permanent fix. Hope others experienced this as well.