And then, when 1.5 finally comes to mobile, you'll have a save (or saves) well-positioned for exploring the new 1.5 content.
Oh, and before 1.5 comes to mobile, some advice to give yourself a leg-up on the update? Buy up a big supply of coconuts before the update because purchasing them from Sandy is limited after the update. Also, if you haven't bought them yet, don't buy the water or earth obelisks yet... okay, maybe buy the water obelisk, but definitely not the earth obelisk. Their price drops at 1.5 because they are not anywhere near as useful as the desert or new island obelisks. If you think you can make due without the water obelisk, though, until after the update, I do recommend holding off. However, as soon as the update drops, go buy the water obelisk because you'll be wanting to get to the beach and Willy and his boat a LOT after the update drops for you.