One of my friends has shared an interesting article in his Google Reader. The shared post was that of a Slashdot user who was pointing to this article in Wired - The Untold Story: How the iPhone Blew up the wireless industry.
If was like reading a very short book on "The Making of iPhone". Very informative and very motivating.
The article talks about how iPhone was concieved by Jobs and how they struggled to make it into a reality.