Hey guys. At work, my boss provides people with a few different sync software packages for backups and multi-system setups, namely Carbonite and SugarSync. He'd like to know if there's one available that can sync multiple user accounts at once (i.e. Sync User B while User A is logged on) so that customers can have a "hot standby machine" in the event that their main machine goes wrong. At present, the software we provide only syncs the account that is currently logged on. If their main machine goes wrong, the customer is required to wait several hours for their files to sync on the backup machine. This poses problems, as some of our customers run businesses and will need access to their files ASAP. Cheers in advance.