My wife is traveling to London, Paris and Barcelona in the coming weeks and we are wondering if it is worth the trouble and expense of adding international voice and data to our plan just for her week long trip. How is the voice coverage and are there per minute fees every time you use it? What about data? Apparently the Saga is not compatible with Europe's '3G' technology, but does the non-3G service work? Does the built-in GPS work with apps like Google maps? Any hints, tips or suggestions would be greatly appreciated!