thanks a lot for posting this - a meditation was my initial intention, but the gui post provoked me before I got the chance to choose my delivery ;P
Nothing much else to offer in the way of words, so heres some various propoganda for anyone interested.
It should also be noted that as of the current beta, Mozilla ships with a Gecko Runtime Environment. As embedders' are Gecko's direct interest, there has recently been a significant attempt at modularizing the lizard. This is the result, and its still pretty fresh and undocumented - but you can read more straight from the horses mouth, here

general overview: if youve no idea whats going on, read this to whet your appetite. Then imagine using it as a Perl GUI kit.
Creating Applications with Mozilla the Oreilly Open Book. The bible so far.
xul tutorials and widgets overview
Embed the lizard
mozillazine.org general dev info and developer weblogs.
google coverage of XPCOM newsgroup
moz based projects including a link to the Mozilla ActiveX control, so Gecko can be fired up inside Explorer.

Most of the Moz dev stuff goes on in Newsgroups and IRC - the online documentation can be pretty stale, so no news there!

I'll post more later this evening, enjoy.


time was, I could move my arms like a bird and...

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