I'm reminding people to use online backup services like carbonite and mozy to backup their pc's and to also test recovery once per season. We recently recovered some small files with carbonite for a friend, but it would not restore an Outlook pst file. There were other backups for the email and contact information, so it was not critical, but the question why still remains.
I'm also recommending Google contacts and calendar to backup your cellphone info. They work great with services like Google voice too. Ask me for more info if interested.