Limited in what ways? I haven't used it directly myself, but Capture One uses the Nikon SDK, and it's able to fully control my camera with live view. In fact,

Limited in what ways? I haven't used it directly myself, but Capture One uses the Nikon SDK, and it's able to fully control my camera with live view. In fact, they even have an iPad app for controlling the camera, with live view on the iPad.