DropBox is a new feature for Survivalcraft that allows you to back-up your worlds on-line in the dropbox server.
here are the steps to back up your world.
  1. Create an account at www.dropbox.com
  2. Click the log in button and create an account (or log in if you already have DropBox )
  3. Get your windows phone and start Survivalcraft
  4. Then hit the DropBox button and make sure you're logged in with your phone
  5. Now go to single player
  6. Select your world and hit Modify
  7. Hit upload and you are done! Congrats!
To download texture packs and worlds see the corresponding pages.
Have fun!