Great, in-depth, piece on javascript performance for mobile web apps. I'm reminded of the arguments Java programmers were making in the late 90s about Moore's Law allowing Java's performance to catch up with C "in a generation or two."

JITing JavaScript was a 60-year old idea with 60 years of research, and literally thousands of implementations for every conceivable programming language demonstrating that it was a good idea. But now that we’ve done it, we’ve run out of 60-year-old ideas. That’s all, folks. Show’s over. Maybe we can grow another good idea in the next 60 years.
AuthorArt Gillespie