We've posted about Louis Vuitton's iPhone and iPad cases before -- they're the ones that are needlessly expensive, and often overly gaudy. But the luxury accessory company has a new initiative around Apple products: it's launching an iPhone app for travelers called Amble. The app makes use of the company's City Guides information to provide guidance to any number of locations of interest in whatever covered city you happen to be in. There's a social element as well, allowing you to share or browse locations sent across through social networks or from friends. And in-app purchases (from $10 to $15) allow for access to the actual City Guides information f
