Sure, we've been chummy with the Zune HD in the past, but we just took it for a quick spin on video so you can check out those smooth transitions for yourself. Unfortunately, the unit we were playing with had zero content loaded on it, but you can check out the slick unlock mechanism, swooping screen-change animations and a bit of pre-loaded Zune video on the gorgeous OLED screen. Plus we tossed together a few pics and a shot of the Tegra chip that's doing all the work into a gallery below. Video is after the break.Gallery: