I had been looking for an app to "take control" of my Android phone's SCREEN, and not just its functions. Prior to trying 'Webkey' I had been using 'AirDroid', the latter of which, although great, did not give me a true screen control. Webkey does just that.
Currently (2012-10-02), however, my Samsung Galaxy Nexus' on-screen keyboard is disabled after running the app, requiring a restart of the phone prior to regaining on-screen keyboard functionality.
My Google play review: