"SMOB is a distributed / decentralised microblogging system built on RDF and Semantic Web technologies, mainly SIOC and FOAF. Currently, we have simple prototypes of a publishing and an aggregating service, less than 100 lines of PHP code each."
"See everything that's going on with your friends in all the sites you use, easily figure out where you're missing connections with your friends, interact with multiple sites at once, and more!" - In privater Beta; Screenshot erinnert an Tumblelogs.
"You can now cross-post your updates to other services like Pownce and Jaiku, select your preferred Short-URL-service, received tweets can be marked as new, more color schemes have been contributed, and you can put the input box to the top."