I did not read all 25 pages, so sorry if this has already been mentioned.
Why don't you grab the source from Chromiume and build a customized browser out of that? I'm a FireFox user so I doubt I would use it, but you can also grab the source and make a FireFox like customized browser. In fact there is GNU version that should be rather easy to customize called IceCat. I'm only suggesting these because I didn't see the need or reason to make a new browser, if it lacks basic features and the only added benefit is PCLinuxOS branding I wouldn't see a point in using it.
Not sure, but I think Chromiume also supports theme/skins. Why not start out just making some PCLinuxOS theme/skins for popular browsers?