InfoWorld: Without a doubt, the best smartphone for business and pro users is Apple’s iPhone 4S
“iOS 5, Android 4 ‘Ice Cream Sandwich,’ Windows Phone 7.5 ‘Mango,’ and BlackBerry OS 7 were all released in the past few months, each promising to advance the iPhone, Android smartphones, Windows Phones, and BlackBerrys respectively to the head of the mobile pack,” Galen Gruman reports for InfoWorld. “But only one can be the best.”…