It's been around for awhile now actually. I just now added some information on the site so that people would know about it by just browsing around.
If you are reading the RSS feed in a reader (I recommend Google Reader...very nice), then it will only load the messages that are public for viewing. So if you have access to ComNets that are restricted viewing, you'll have to come onto the ComNet to read them.
I also plan to add RSS feeds for each forum, ComNet, and topic in the future.
If you have a VE related website and want some content on it, feel free to publish the RSS feed on your website.
Let me know if there are any questions.