JSArmor

https://github.com/lemonsqueeze/jsarmor

It's a JS blocking userscript for Opera.

Pros:
- It mostly works
- It can block by domain, not by page
- The interface is unintrusive, and not too hard to get the hang of

Cons:
- Requires special configuration of Opera
- Requires further configuration to work on SSL encrypted sites
- Even then, doesn't work at all on some encrypted sites (e.g. Gitorious)
- In terms of features, it is absolutely not "Noscript on steroids."

IOW it still has a ways to go. Still, it's nice to see something like this being actively developed.

(Also the userscript itself is very, very short, so it might be amenable to improvement by JS-savvy users.)

Edit: another problem, frames apparently mess it up and cause two icons to be displayed...