Nvidia has announced that its teamwork with Valve is to bring not only Portal
to its Android Shield handheld but also Half-Life 2
You can see the classic gems play out on Shield in the video below. Valve's marketing VP, Doug Lombardi, states, "NVIDIA has done a remarkable job bringing both Half-Life 2 and Portal to Shield. We’re playing both games here on our Shields, and fans of both franchises can expect the same gameplay they’ve come to love on the PC".