Library in a Pocket

With Amazon's Kindle, readers can squeeze hundreds of books into a device that is smaller than most hardcovers. For some, that's not small enough. Many people who want to read electronic books are discovering that they can do so on the smartphones that are already in their pockets — bringing a whole new meaning to "phone book." And they like that they can save the $250 to $350 that they would otherwise spend on yet another gadget. "These e-readers that cost a lot of money only do one thing," said Keishon Tutt, a 37-year-old pharmacist in Texas who buys 10 to 12 books a month to read on her iPhone, from Apple. "I like to have a multifunctional device. I watch movies and listen to my songs."