If there's two things the world needs, it's a complete lack of international roaming charges, and GPS signals that never fade. Oh, and for Slash to not play the last Super Bowl with the Black Eyed Peas -- we suppose that makes three. At any rate, at least we're moving somewhat closer to a reality that solves the middle issue, with TeleNav announcing this week that it'll be implementing "hybrid navigation technology" into its apps (including the new iOS version) in the very near future. Post-implementation, TeleNav software will automatically cache maps and directions for routes you look up, and if you drop your
