It seems Google hasn't been interested in fixing webkit masks properly since they broke support for them in Android 3.x. We thought they were fixed in 4.0.3, but apparently as soon as you add a transform to them they break. So we're working on changing to font-face in the near future. We'll get more details on this soon.
Hi Jamie any update on this I am seeing my Samsung galaxy nexus with android 4.0.2 the issue. Older androids ok for example
Android 2.2 is Ok (HTC Desire)
Anyone have an idea of a workaround. I am guessing its a massive task to swap in an alternative method to do images depending on the browser in android.
During scaling the issue is present on iphone until the animation stops then it is correctly seen. Nothing too problematic but I am hoping that something can be done before long as we want need to support later devices. Funny that its usually older devices being the issue.