Yes Browser and visual HTML editor, created by the W3 Consortium. More than being a browser, it is also an HTML testbed. It already runs on DOS, and the Linux version is being developed. This was the W3C reference browser before Amaya was born. Yes One of the first browsers for X. Not specially pretty, not very friendly, but works fine.
Development keeps going.
No No External program Textmode browser running on top of the almighty Emacs. No No GTK-based browser. Very pretty, supports animated GIFs, but it's on a very raw stage. Many features are not implemented yet, and lots of bugs are waiting to be solved. A graphical browser made in Python.