I currently have a Verizon Wireless Motorola Xoom Stingray 4g LTE
When i go to launch the game it will do the Activation Blue spash screen then goes blank and will not do anything
it works just fine on my Motorola RAZA with nothing wring other then extremely laggy but playable unlike the xoom
Have you attempted to uninstall/reinstall the game completely? When installing/playing, are you doing so from a wireless connection, or are you accessing the 4/3g?
Please also confirm that your hardware is up to date, as the game does require Android 4.0 and up.