When we last checked in with the lanky BL40, it was gussied up and posing for glamor shots. LG has followed up with a video that gets into how you're actually supposed to use such a strangely-shaped device.
Some of these features and interface ideas will be familiar from the earlier ad, but they're elaborated on here. I particularly like the adjustable panes, which turn a single widescreen into two virtual screens, giving you something like a miniature dual-monitor setup. [LG—Thanks, Tim!]