A new browser, Rockmelt, launched in the last hour, and you can tell right off the bat if the software is anywhere near competent, and there's no reason why it shouldn't be (that's not the same thing as "is") that it's a winner. 

Even though there are other ways to slice it, and maybe there isn't even that much demand for what it does. 

No matter. It's going to get an installed base (with the caveat above about competence) and with an installed base comes momentum and value, and there won't be any shortage of money. They're rich overnight. 

There should have been more high-level browsers. 

And there should have been a browser with identity built in. 

This browser is both high-level and understands identity. 

But it's not a river! It's a hunt and peck style aggregator.  

Okay, let's do the river.