Adobe have made it abundantly clear that the current version of Flash 10.1 available in the Android Market is not for use on Tegra 2 powered devices. So if you currently own a Tegra 2 powered device like the ViewSonic G Tab or Advent Vega, you won’t be able to have Flash 10.1 work with your device, leaving you with either an older working version or having to wait an unannounced period of time until a Tegra 2 certified version of Flash is available for your device. Adobe must surely be working hard to get a Tegra 2 version up on the Android Market seeing as though all the latest and greatest devices coming out of CES are powered by the dual-core CPU.
Latest Flash 10.1 update not for use on Tegra 2 powered devices
Source: Android Central.