This was just released by Google and my initial 5 minutes impression is that they rely on Atom a great deal. I could not find my primary RSS feed from my site but everything Atom showed up. Hey Google where are all the RSS feeds? I did everything I could think of to find my RSS feeds and nothing
The viewer is really fast though as they cache the results and formatting looks good but I am going to reserve judgment for the time being, because if the reader does not support RSS it’s a looser out of the gate. [reader.google.com]
Update: I got the reader to accept RSS but for some reason it took some coaxing.
It is very slow, but does work with RSS. I imported my entire list from Bloglines ( with some issues).