Jeff DeCagna is WAY too excited over this development - the ability to see and proof your attendee badge before it prints.
I'm not registered for ASAE, so I'll just show Jeff's badge instead.
I believe this is an eShow application, but I'm not 100% sure. If it's not, I'm sure someone will post a correction within hours.
That ASAE is doing a blog is to be commended, but we'll also note that it seems every other major meetings association event is doing one or will be shortly. That ASAE is doing a blog with multiple authors is what makes this exceptional. Each of the seven authors has gained some measure of credibility from their own blogs and that they're all working together for ASAE (for free, no less) is testament to and an example of the cooperation that is more often than not a hallmark of the business blogoshpere.
As far as the RSS thing goes, I did a post for our coffeehouse explaining RSS the other day that got immediate sign ups for our MyYahoo feed. I think this same type of "novice-level" introductory RSS post would work for ASAE as well.