Few days before I went back home, a friend of mine - Mia, showed me her iPhone. I found it very interesting and helpful. She had a lot of applications in there and among them are eBooks of Microbiology, Biochemistry and other medical stuffs. One application costs around $40 - yes, in US dollars! but she can download them for free. Why? I can't tell that in here...Then she told me one of her friend...