Here's a video of the "Companion Cube" from Valve's Portal video game rendering on Linux.
Embedded below is the video of the Portal Companion Cube on Linux via Google's Android platform and running on the hardware that makes up the Vivaldi Tablet.
For those hoping it's a video of Valve's Source-Engine-Based Portal game running on Linux itself, this isn't the case but it's just the Companion Cube from the extremely popular game. Or if you were hoping this is an update on the Valve Source/Steam Linux support status, this isn't the case. All of that is still happening but until more information can be shared, for now is a video of the Portal Companion Cube being rendered via OpenGL ES on the Chinese tablet that makes up the KDE Vivaldi model. For those not already up to date on the Valve Linux news for what was last publicly shared, see Valve's Gabe Newell Talks Linux Steam Client, Source Engine and A Video Of The Source Engine On Ubuntu Linux (Left 4 Dead 2 running from Ubuntu 11.10).