public void updateApnsDeviceToken(byte[] apnsDeviceToken)
{
#if !SILVERLIGHT
send_updateApnsDeviceToken(apnsDeviceToken);
recv_updateApnsDeviceToken();
#else
var asyncResult = Begin_updateApnsDeviceToken(null, null, apnsDeviceToken);
End_updateApnsDeviceToken(asyncResult);
#endif
}
#if SILVERLIGHT