The Ubuntu One C
ontacts sync app delivers over-the-air synchronization of your phone contacts with your Ubuntu One personal cloud. An Ubuntu One account (available at http://one.ubuntu.com/) is required to use this app. Phone contacts sync is a paid feature but a free 30 day trial is available.
Ubuntu One also syncs files and Tomboy notes on your computer with your personal cloud. Find out more about Ubuntu One at http://one.ubuntu.com/.
Support resources: https://one.ubuntu.com/support/