After a tour around various cell phone stores and computer centres yesterday, I can say that the native Flash 10.2 support on Adroid 3 does not deliver a stable WGT experience.
I tested the Motorolla Xoom and Acer Iconia.
Both installed Flash easily and loaded quickly but the furthest they could load was to bring up the login box on wgt.com home page. Interacting in any way with the login box caused the broswer to shut down. This seemed to be a sticking point on both devices.
The Samsung Galaxy Tab with Android 2.2 did manage to get the game window loaded but then froze and eventually shut down.
The cpu and ram on the Acer devices was definately good enough to run the game as the speed of the load up of the web page was quick, it's just WGT didn't like the device at all.
Several other Flash web sites with video worked great but since I don't know any other flash games to try I couldn't go down that route.
The Acer Iconia running Windows 7 was the only tablet I could get WGTactually playing on but the effort to even get to that stage was major and the lag between hitting the screen and the meter stopping was so bad and unpredictable it was painful.
So I'll be waiting for the Toshiba and HTC Android 3 tabs to be released and trying again I suppose.
I still refuse to buy and iPad.