Remember that second generation Pogoplug we unboxed last December? Meet its corporate cousin, fresh out of LinkedIn and ready for that 40 hour work week. For all intents and purposes, the Pogoplug Biz is really a Pogoplug with just a few extra features that business owners may appreciate, such as enabling said owners to use their own domain name(s) and customize (or "skin") the user interface and email templates. The device -- which can connect up to four external HDDs to the internet -- also keeps track of how many visits, streams and downloads your files rack up, and you can even claim your own