I agree that a good web brower is vital for a system today. If such SW will be available is a question about support from users I believe. It's true that free SW is good in many aspects, but it's easier for developers to spend time on their projects if they don't have to have another full time job only to pay the bills. I think a full blown web browser is quite difficult to develop with only free resources/developers available, so there better be users out there that's willing to pay for the SW they're using... Same goes for the OS itself.
Well, that's my opinion :-)