I think the problem it really solves is the Twitter problem rather than the RSS reader one. That is, if RSSCloud works as advertised, implementing a Twitter-sca

I think the problem it really solves is the Twitter problem rather than the RSS reader one. That is, if RSSCloud works as advertised, implementing a Twitter-scale infrastructure becomes pretty simple. The article raises important issues re scaling, though I'd expect Wordpress and Winer are aware of them. I guess it remains to see if they are (and if Twitter-like apps are something people actually want)