Yes I have. I have decided to go with using a browser for now as I simply do not have the time to support multiple mobile apps and I am not too inclined to pay Apple 99$ for a Developer account. Personally I need this to work on my iPad, so you could consider using the browser as my way to break free of Apples walled garden :)
If someone wants to build a mobile app I am more than happy to provide other means of connection to Weylus than websockets. This also might bring the latency down as udp streaming and more control over video decoding and playing is possible then.