Over at Radar, Ben Lorica analyzes sales and category data for the iTunes App Store and makes an interesting discovery about the store’s book section:
The Book category is comprised mostly of ebooks and while there are over 150 such “apps”, it was the only category not represented in the Top 100 rankings …
As Ben notes, most of the applications in the App Store’s book category are individual ebooks — most drawn from Project Gutenberg — wrapped up as stand-alone software packages. The user reviews attached to these ebook apps fall into two camps: critics who cry foul over public domain titles repurposed with a price tag, and advocates who see value in the applications’ low cost (most are $0.99) and easy access.