Phoronix reports there's now open-source 3D support for NVIDIA's Tegra, you can learn about it over here.
Summary: "Last year was the landmark announcement of an open-source NVIDIA Tegra graphics driver for Linux that was developed with the support of NVIDIA. In late November, NVIDIA published open-source 2D acceleration support for their newer ARM SoCs. Today, 3D support is being announced for the open-source NVIDIA Tegra graphics driver."
