For those that have updated their Nexus 7 to Android 4.3 recently and found the modified Simplewebcam app is not working anymore. Google has changed the way in which Android handles user privileges and superuser/root rights in their recent 4.3 release. This poses a major problem for the modified simplewebcam that some of you are using. Currently there is no reasonable way to make it work outside of custom ROMs that usually introduce other problems.
Until there is a better solution I will therefore not work on any further updates of this app and concentrate on other projects that have been dormant for a while now. If there should be a way in the future for root to work again I will post an update via Twitter and this blog.