Anything that stops the obnoxious redirects to the App Store would be awesome. I started turning off JS on mobile today simply because most news sites I read had become unusable. This is great news and an ideal way to punish publishers that bombard my experience with giant turds. I will gladly pay for content that doesn't suck.
I really do wish that safari had a quick toggle for JS. Browsing the web on iOS is so much faster and less annoying with JS disabled, but I don't like digging through system settings to toggle it.