Webcam Unity 3.5 not working on Android?

With Unity 3.5, I've got live camera input working on the desktop (MacBook Pro) and iOS (iPhone4), but on both my Android phones (LG Optimus and Samsung Galaxy Nexus) I get zip.

Here's my script, attached to a plane with a RenderTexture:

 #pragma strict
 private var devices : WebCamDevice[];
 public var deviceName : String;
 private var wct : WebCamTexture;
 private var resultString : String;
 
 
 function Start() {
     yield Application.RequestUserAuthorization (UserAuthorization.WebCam | UserAuthorization.Microphone);
     
     if (Application.HasUserAuthorization(UserAuthorization.WebCam | UserAuthorization.Microphone)) {
         devices = WebCamTexture.devices;
         deviceName = devices[0].name;
         wct = new WebCamTexture(deviceName, 640, 480, 30);
         renderer.material.mainTexture = wct;
         wct.Play();
         resultString = "no problems";
     } else {
         resultString = "no permission!";
     }
 }
 
 function OnGUI() {
     for (var i = 0; i < devices.length; i++) {
         GUI.Box(Rect(100, 100+(i*25), 300, 25),devices[i].name);
     }
     GUI.Box(Rect(100, 100+(i*25), 400, 25),resultString);
 }

Any ideas?