This is extremely belated. You may have noticed the orange XML icons in the lower right corner of some of the MemeStreams pages. We've added RSS support. This means you can view MemeStreams using RSS aggregators and headline scrollers (AmphetaDesk, NewsMonster, Faust's Friend). The topic pages and user weblogs are supported. The XML icons link to the RSS output. However, you can reach it by adding "?type=rss" to the end of a MemeStreams URL.
Rattle did this feature in some sort of insane 24 hour coding binge. He deserves props.
You can now submit your MemeStreams page to weblog aggregators like Blogdex and Daypop. We'll be turning the main page in to these services this weekend.