Remember Panasonic's DMP-B15? You know, that "world's first portable Blu-ray player" that was introduced at CES and just started shipping last month? With an $800 price tag, there's a good chance you never even let the thing enter your stream of consciousness, but we can only wish you the best of luck as you try to ignore this one. RCA has quietly started to ship its BRC3108 10-inch portable Blu-ray player, which is equipped with a rechargeable battery, integrated stereo speakers, a headphone jack, 1080p HDMI output and