Zen Studios happens to be the developers behind one of the two main pinball platforms on Android called Zen Pinball. Up until now the official name of their platform was Zen Pinball THD but if you go to the Google Play listing now it will show up as Zen Pinball HD. This is because the platform, once exclusive to Tegra-based devices, is now available for select Android devices that do not have a Tegra chipset inside.