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That's the chat I refer on the CREDITS. Thanks for the link I added you and the link there.

A friend of mine wrote a Citrix ICA client using this idea and a server-side image map, IIRC. It was actually usable.

For a while (they've changed clients a few times but it still might work) the last fallback of LogMeIn remote desktop software was a gif of your desktop in an image map. It was surprisingly usable!

I've always thought of that, but never an animated gif. It seems brilliant!

Also some early webcam/security-cam 'zero install' stream-via-web-pages used this technique, if I recall correctly.

I believe they're all (most?) MJPEG: http://en.wikipedia.org/wiki/Motion_JPEG

Gojomo has it right, the very first streaming cam used a GIF animation that never ended.