Details remain decidedly light on this one, but it looks like Samsung could be about to expand its AllShare media streaming / sharing service with a new piece of hardware. A device dubbed the AllShare Cast Hub has now turned up in some FCC filings, apparently packing some HDMI connectivity and dual-band WiFi capabilities. Unfortunately, that's about all that the filings reveal, but it's not too much of a stretch to infer that the device is a media hub of some sort, presumably with the ability to stream media from your computer or smartphone to TVs that don't already support AllShare out of the box. We're guessing Samsung will fill in the rest of the
