Nice to see some passionate participation in what I believe to be a very important set of standards (Atom and Atom Publishing Protocol). While RSS is the term commonly used when people discuss XML feeds, my recommendation to clients is to consider RSS as a tactical and legacy approach (use it and support it as needed). You might notice that the tag used to create an index view of my posts on XML feeds is labeled as RSS. This tactic just acknowledges common use of the term. Strategically, the focus should be on Atom and Atom Publishing Protocol (APP).
Note: Windows Live Writer is my primary blog authoring tool.
Windows Live Writer comes out sitting pretty! All of the servers I was able to try worked great (although a bug fix or two needed to be made along the way). Since the last time we did an interop event like this (in April) I have implemented image uploads to media collections as well as ETag conflict management, and both of those areas seem very solid now.
(Note that the version of Windows Live Writer I was testing is not publicly available yet. Despite the good results from the last two days of ad hoc testing, there’s a whole lot of testing and review that still needs to be done before we’d feel comfortable shipping it–same as with any other new feature.)