After reading a short web teaser for Appillionaires, I was excited to order the full book.
Unfortunately, the unabridged version was a bit of a letdown, a short 196 pages of content, with wide margins and lots of screenshots. The bigger problem was repetition, with the key points of the book amounting to a few pages at best. In fact, if you read the author's summary bullet points at the end of each chapter, you need not bother with the rest of the book.
The text lacked any meaningful analysis of the market and exploration of how, specifically, the AppStore resembles a "gold rush," a theme repeated throughout the book. The interviews with successful app authors were somewhat entertaining, but limited in scope. While repeatedly asserting that Venture Capitalists and existing game companies are all "vampires" with a "proboscis", and making broad claims (e.g. none of these games could have ever come from an existing studio) Stevens fails to do any meaningful investigation of what value those studios might provide-- ignoring the opportunity to flesh out the "gold rush" metaphor.
The number of distracting typos was on par with what you might see on a blog post lacking a copy editor.
Despite not living up to its full potential, the book was basically an entertaining read. While a reader working in this space (e.g. a developer) won't likely find much of interest, the book is written for a broader audience and doesn't require any technical knowledge at all to understand.