To sync you all you need to do is sign in with your Facebook account in the app. Once that's done, you can use your iPad in the plane and plan some things you don't want to miss. When you hit the town you get out your iPhone and you're sure to find them back easily.
As an extra service you can also find all your synced bookmarks on our website. Again, all you need to do is sign in with your Facebook account. In the next release you will be able to sync on Android as well.