Check out the new service from Bloglines. Basically they will develop a new Web service API so that applications can pull the feeds from them, instead of pooling your site directly. FeedDemon, NetNewsWire and Blogbot will have support (apparently there is a beta of FeedDemon already out with support for it).
See also Mark excitement over the new service :).
Although I don’t like pooling (see a previous post regarding mod_speedyfeed), I see this one as a necessary step towards a real pub-sub network. Bloglines, as others who already have a lot of feeds locally, are the best players to start, or to feed a pub-sub network.
Very good stuff, congrats to Bloglines.