As the Zune HD launch looms ever closer, a smorgasbord of purported launch videos have offered up what appears to be the best demonstration yet of the sleek, sexy portable's 3D gaming capabilities.

The 3D gaming example, Forza 3, debuts at about the 30 second mark in the video above. It's a fleeting glimpse, but it's solid evidence nevertheless.

For authenticity's sake, we tell you that Microsoft PR reportedly asked the leak's originator, Buy TV, to take the videos down, but not before brigands at sites like Neowin were able to upload them to YouTube, where they spread like a New York Times homepage virus.

Zune HD drops in two days. [Neowin, Buy TV via ars technica]