For small business off-site data-redundancy....

Assuming there is a PogoPlug at work, with a current copy of the data...

If several off-site PogoPlugs (say, at our homes)  could be configured to replicate (only) the PogoPlug at work, then we would achieve off-site data-redundancy.   The PogoPlugs would use Linux-to-Linux "rsync" for efficiency.  The more offsite replicationg PogoPlugs, the more the redundancy.

This request appears to be different than the existing "active Sync" functionality.

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Further, our data at work undergoes heavy access, but changes little.  Thus it would be best if the main data remains on the high-throughput server, but the PogoPlug at work becomes the first level of the backup, rsync'ing to our server (presumably, in this configuration, going directly through the network at work at 1Gbit/s to the server, and NOT going out through the global internet at all !!!!)   The reason for this is the much much higher bandwidth on the server versus the USB-connected PogoPlug.

Then the off-site PogoPlugs could replicate the office PogoPlug at their leisure.    

To re-iterate, the office PogoPlug ONLY reads from the server, directly through the 1Gbit ethernet, but also listens for rsync replication requests from offsite PogoPlugs located offsite at our homes.