Brent the author here. I'm doing basic productivity work while listening to music, doing email, and leaving Twitter & Hipchat open. Engadget and The Verge both

Brent the author here. I'm doing basic productivity work while listening to music, doing email, and leaving Twitter & Hipchat open. Engadget and The Verge both noted sub-4-hour battery life in their reviews too. I'm glad you're getting more life though.