I have been using my SlingPlayer on my Xoom over wifi without any problems. Recently, I tried to launch SlingPlayer while my device was tethered (via Bluetooth) to my phone. SlingPlayer immediately crashes with a NullPointerException. This should not occurr, and I should be able to stream regardless of the type of connection I am using. I've developed several apps for Android that use streaming, and I have not had any problems streaming on a tethered connection. If tethering is not supported, please add an error message.