One last thing for your Samsung, download the Samsung Kies software onto your laptop, this takes care of everything to do with your phone, pictures-music-software updates etc etc. I use it all the time for taking my photo's off and putting music on. As for your original question I would stick with google maps, if you have vodafone, activate the vodafone passport for when you go abroad, it's £3 a day and you just use your phone as normal with everything coming off your inclusive bundle, you will need to activate the data roaming on your handset as this defaults to "off" when you go abroad.