Based on the apps listed, and on some other surmises, I'm guessing that apps that don't use the NDK and don't use 3D graphics will run pretty easily, and many of them should Just Work.
I was involved in a project that did somewhat similar things. I think Google got it right by doing a release that restricts apps to ones that use certain capabilities, particularly since, in Android apps, those capabilities are declared and can be filtered using the app manifest. Making GPU acceleration work in a system with a "hybrid graphics stack" instead of layering Android's 2D graphics on a native substrate is a ton of work for an incremental (albeit an important increment) gain.
I was involved in a project that did somewhat similar things. I think Google got it right by doing a release that restricts apps to ones that use certain capabilities, particularly since, in Android apps, those capabilities are declared and can be filtered using the app manifest. Making GPU acceleration work in a system with a "hybrid graphics stack" instead of layering Android's 2D graphics on a native substrate is a ton of work for an incremental (albeit an important increment) gain.