After four months of using DropBox as our primary data storage channel, its viability is no longer in any doubt. 100Gb of storage space is beginning to seem a little restrictive, but with that caveat, the service works as advertised, and in an unobtrusive, reliable fashion. If Australian bandwidth was better, the whole concept would be pretty much perfect. We have DropBox linked to four desktop PCs in two locations. The need to keep track of file synchronisation and make multiple backups in both locations has vanished. At the end of each day, we save the working file folder to a backup USB powered hard drive. That, plus four identical copies of the data (one on each workstation) and the copy on the DropBox server (plus DVD burn backups) makes the data seem quite secure. A skim of the DropBox forums hint at unmet demand for storage solutions larger than 100Gb, so hopefully additional packages will be rolled out soon.