The app suits my purpose.

The book only takes up 6.7 megabytes (MB) on my ipod, so I still have plenty of space for songs. It contains the first 164 pages, the foreward to 1st edition, the Drs Opinion, and Spiritual Experience. It has stories from the 1st and 2nd edition, the original manuscript, a subject index, some dictionary definitions, and text comparisons. In addition, it has a sobriety counter. I do not believe the size of the font changes, but I find it accepable to read. It does not replace having a real book, but it is great to have on the road, and I am going to try it out in meetings.

BrotherMatthias about e-AA