A trademark filing certainly doesn't have to lead to a product, but here's hoping Comcast's request for "DVR2Go" means something new is in the works. Light Reading reports the request was made on March 29, and should be registered soon unless someone else challenges it. The company showed off a sweet Panasonic-built portable DVR at CES a couple of years ago that we'd like to see offered, but other potential products like a mobile video serve (streaming from our home DVR? we're into that) are tantalizing as well. Check after the break for a demo from 2008 courtesy of Veronica Belmont, we'll be posted outside the USPTO for the duration.