Hiawatha Bray (boston.com) takes delight in the ?torrent of helpful little programs? available for iPhone and iPod touch. On the App Store, he says, ?there are thousands to choose from, with more turning up every day.? Bray favors ?the powerful, the practical, and the cool - programs that do useful stuff and look stylish as they do it,? and he shares some of his favorite apps with us in his review.