I think we agree about UX. One of the big picture goals of .secure is to invert the current security experience. These days you go to a site and then have to interpret the UI to see if you are safe. In our vision, when you type bank.secure you are telling your browser, OS and the server on the other side that you want to navigate there as safely as possible.
I'm going to post about the tech details more tomorrow and hopefully that clears some things up.
When I browse to a secure page (https) in my browser, I'm told that the connection is secure with a green https prefix in the address bar. But I don't really know it's secure. I'm placing my trust in the CAs. Using .secure to signal a secure connection to user doesn't improve this. It just complicates things further, because now there's two things a savvy user should look for if he/she expects a secure connection (https and .secure).
Because you seem like a fan of XKCD: http://xkcd.com/927/ Creating a new UI standard works best when it kills (totally replaces) it's predecessor. In this case, I think that translates to having every site which currently uses https make the switch to .secure. That seems unlikely to me.
I should point out this is about more than TLS, and more than the web. We have a short window during which we can create an Internet category that is both clear to the user in it's goals and specific in its requirements for hosts. Our hope is to create an extensible protocol with DPF, one that can be extended to give domain registries and registrants the ability to choose higher privacy protections, limit risk to CA compromise, and secure other protocols like SMTP.
Using .secure just asks users to instead place their trust in a new central authority; why does this even need to be a new TLD? This researcher is wasting money buying into ICANN's bullshit monopoly. The future of strong crypto systems will most certainly be decentralized.