Just a quick reply to your "I still can't allow a user to upload a video with a webcam using standard web technologies" point. I believe you can or soon will be

Just a quick reply to your "I still can't allow a user to upload a video with a webcam using standard web technologies" point. I believe you can or soon will be able to upload video captured on a mobile device in Firefox for Android and the Android stock browser, using <input type="file" device="camera" accept="video/mpeg"/> See http://www.w3.org/TR/device-upload http://www.w3.org/TR/device-upload.