A few people I know have asked me what I think about Google's Chrome browser.
Technically, it looks good on paper. There are some interesting architectural problems they haven't solved yet, especially with the process separation model, especially with regard to windowless plugins, and also Mac. These are problems that will be encountered by anyone doing process separation so it will be interesting to see how that goes. V8 seems overhyped when you take into account the JS work being done by other browser vendors.
I'm not sure how the competitive landscape is going to play out. Mozilla's in a strong position now and the immediate future looks great. We just need to stay focused, keep making smart decisions, and keep shipping great software.
Overall, I'm actually really excited. No matter who gains and who loses, there's no doubt that this innovation and investment and energy is great for the Web (especially when it's delivered in free software).
(Admittedly, there are moments when I half-wish for a nice quiet job where I'm not competing against the world's biggest tech companies and I don't have to worry about the future of the Internet. But that would be so boring. Having a job I'm passionate about is worth the stress.)