Any idea when Pogoplug might introduce an app that is more business-oriented with folder-level security management, etc?

Also, a more detailed description of security would be nice. I installed a Pogoplug at our office and an outside IT consultant (who wouldn't make any money off us having a Pogoplug) said it wasn't secure enough and we should have a slow, clunky VPN instead. Not enough info was available on the website to fight.