I want this yesterday. Been working on writing my own custom browser UI in a multitude of different platforms (WPF / XUL / Flex / etc. / etc.) but they were all

I want this yesterday. Been working on writing my own custom browser UI in a multitude of different platforms (WPF / XUL / Flex / etc. / etc.) but they were all either buggy or didn't come full featured from the start. All I really want to mess with is the UI, not the behind the scenes stuff, so this seems to be exactly what I'm looking for.