I am overall very happy with the product, however I have a suggestion for a feature that I think should be included in your upcoming release (whenever that is). I signed up/registered for Typepad ( https://www.typepad.com/ ) with my OpenID. And then I wanted to edit my blog with Live Writer but I was unable due to the lack of support for OpenID authentication in Live Writer. I noticed that I would be able to log into Typepad by using a Username/Password combo; however the problem is that since I registered in Typepad with my OpenID I don't get to use a username/password. The option is just not available in Typepad because of my use of OpenID, and this makes sense of course, and it's the desired functionality.
Thus I think it would be a very welcomed feature for Live Writer to support OpenID authentication to any blog platform that supports it.
Thanks for all the hard work. Hope you guys hear me out. :)