This is a small feature but could be an indicator of very big things for Apple. If the iCloud rumors are true then there could be a huge opportunity for keeping your desktop and smartphone/tablet in sync, and this would be a big advantage for Apple and MS since they control desktop environments.

For example, say I have a Pages document open and go to leave the house, the same document could automatically be available on my iPad in the exact same state I left it in without me having to do anything.