I met Ken at ProductCamp DC and had the privilege to get an advanced copy of his book "App Savvy," published by O'Reilly. Ken is not only a great speaker in the mobile apps arena, he also did an excellent job writing about his "been there - done that" experience as an iOS product manager on some of his successful apps. This book is a concise, practical, step-by-step guide for anyone starting with Apple's iOS platform. It includes a wealth of useful information and tips ranging from product strategy (e.g. Blue Ocean), customer development, product launch, social media marketing, the iOS development/submission process, and post-launch support. On top of that, at the end of each chapter he included interviews with some of popular iOS developers/entrepreneurs (e.g. Mobclix, Smule) - lots of valuable lessons learned from the iOS community. Great read--highly recommended.