MSReadr (or, RoboScoble)
The Windows Live product teams have a number of blogs, some hosted on MSDN and others on MSN Spaces.
Now you can keep up with all these in any one of four ways.
1. Subscribe to a single feed Atom or RSS flavor) that aggregates the various posts
or, 2. Visit this web page (called MSReadr) that renders that feed content onto a single page (RoboScoble.com also works ;-)
or, 3. Whack this OPML file into your feedreader.
or 4. Check out Liveside.net (it seems to have most of the Live team / individual blogs covered).
via Niall.
By the way, dev.live.com is the new developer center for Live stuff went, er, live last week. It is called Windows Live Dev. As a beta, of course.
Here is that site's feed (one of the feeds that appears to be missing from MSReadr).