Rob is a SVG ninja and also one of the hackers that took part in the Unity project. He worked at ksvg2 and contributed also to the KOffice project – and I’m pretty sure that there is more.
Again, it is good to see that people who deserve these contribution rights (because they already coded khtml long before Apple used it) get them some time. But, also again, the question remains if the KDE project will go with its own khtml2, or with WebKit. Afaik there are concerns about the way Apple is leading the project, and some developers are not certain if KDE should really depend on Apple so much with a very important core technology.