We're big fans of the Nexus 7 here at Engadget HQ -- it's just hard not to like a $200 tablet with a Tegra 3 SoC and 7-inch glass-bonded IPS display running pure Jelly Bean. Of the few missing features, there's one we're bemoaning more than the lack of rear camera, and that's the absence of any kind of HDMI or MHL video output. So far, watching movies with the Nexus 7's been relegated to using a