Tweet an Innovative Idea for Exploring a New City to Win a Trip to London

As advances in technology improve our everyday lives, they also make traveling more convenient. From jetlag-reducing apps and traffic maps to currency calculators and paperless tickets, gadgets are cutting costs and saving time every step of the way. See also: Where to Find the Best Food at Airports Around the World Next week, we're flying the five lucky winners of our travel innovation Twitter challenge from London to Austin, where they'll have a chance to dive into the city's culture with an e...