Good things must end. The polishing, fine tuning, cocooning of the Web Crypto API is over. The Web Crypto WG felt that it was shiny enough to go for Last Call. So if you have any interest in using it, just read it, and send us your comments. This is your last chance to influence it before it is shipped into browsers !
The specification is available here : http://www.w3.org/TR/2014/WD-WebCryptoAPI-20140325/
Anyone can send comments to: public-webcrypto-comments@w3.org
Enjoy !