Do you use flash banners or youtube flash embed code and sometimes use wmode transparent and z-index positioning to jazz things up and overlap HTML elements on top of your flash content? Then you’d better make sure you double check how your sites look on Android phones.
Z-index positioning using wmode transparent is currently broken on Android. A coworker found this link: http://stackoverflow.com/questions/4418115/android-flash-content-breaks-webview-boundings-and-overlaps-native-layout-eleme. On Android, your flash will be on top of your HTML content no matter what you do. I imagine Adobe or mobile browser developers will fix this soon, but right now there’s no z-index solution.