about:webrtc is a good start. Meta bug for other tools (or improvements to about:webrtc) that will help developers debug their webrtc applications. We should loop in some of the devtools people too (adding dcamp; he may know better who would be interested)
What would about:webrtc do? What would be the scope of the tool? Providing browser-level info about webrtc (devices found and global network logs)? Or would it be for a specific session? Who's the audience? The scope of a devtools panel is "one window". If you want to expose info and provide tools for one window and web developers (not gecko developers), maybe it's best to use a devtools panel.
So, right now about:webrtc provides browser-level statistics and logging. This includes information on connection establishment (ICE state) and RTP statistics (packets/bytes sent/received, and jitter). It would not be terribly difficult to provide information scoped to a single window (indeed, a lot of this stats info is being standardized by the w3c), but the logging is a little challenging, since that is not currently separated out by window. about:webrtc was intended first as something to be used by gecko devs, but should still be useful for web developers.
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