New York Times: Nokia remains the world’s largest manufacturer of smartphones, yet it was caught off guard by Apple’s slick, user-friendly iPhone and by Google’s Android operating system, which last year supplanted Nokia’s Symbian as the world’s most widely used smartphone OS. Hewlett-Packard remains the world’s largest manufacturer of personal computers, yet it was caught off guard by the introduction last year of Apple’s iPad tablet computer. Now, as the New York Times‘s Steve Lohr reports, both Nokia and HP have pledged to become more innovative. Nokia could decide soon whether to abandon Symbian and adopt a new OS, possibly in partnership with another company. HP plans to introduce its own tablet computer, the TouchPad, later this year.