I just picked up a Viewsonic G-Tablet. It's got killer hardware specs and is running Android 2.2 but it's barely usable because of this terrible TapUI that's crippling the device. I have been following a thread at the XDA forums where users are attempting to root it and get a custom ROM installed, but I'm wondering how hard it is to just wipe it clean and get the stock Android 2.2 running on it. The people who have rooted and blocked most of the TapUI report losing access to their settings, which I guess is heavily integrated into the TapUI.
Is the problem that Android 2.2 doesn't support specific hardware and someone needs to create a ROM with all the necessary drivers?