I find the development stories behind some of my favourite games to be pretty fascinating. Awhile back, the developer of Threes posted some of their emails showing the back and forth that was the development process of probably my favourite iOS game of all time.

Recently TouchArcade posted a fascinating glimpse of the development of another game I very much enjoyed: 10000000. The developer, Luca Redwood, went through quite an interesting path to get to the final product.