From the ten tablet commandments:

"3. Thou shall not take the name of thy tablet in vain when it inexplicably deletes all your photos.
Ever had this happen? You plug your tablet into a friend’s computer to charge. The sync function somehow manages to delete all your photos. Stay calm. Your tablet is linked to your computer, or your phone, isn’t it? No? Well, it should be."

In the N9 manual (as seen on the FCC website), a "Nokia Link" application is mentioned for syncing...