Though it's not quite obvious in this photo, the Thrill 4G is capable of recording 3D video in 720p. The viewfinder shows the 3D video as you're recording it. Here, it's recording video at the AT&T mobile event we attended during CTIA 2011.
This is 3D Spaces, a hub that houses all the 3D content on the Thrill 4G. It provides easy access to the 3D camera, 3D photo gallery, 3D video games, and even YouTube 3D. You can both view and upload videos on YouTube 3D.
There's a Micro-HDMI port on the side so you can hook up the phone to a television. You can then watch videos from the phone on a bigger screen. If your television is a 3D TV, you can watch 3D videos on that too.
One of the more impressive demonstrations of 3D was when we played a golf videogame called Let's Golf. You could really see the 3D perspective as the ball flew off into the distance, though the photo here doesn't really do it justice.