Are they being run off of livejournal.com, or elsewhere?
Could we get the scripts to run them into the server release, and maybe write tools to make setup of syndicated RSS/RDF channels possible by random LiveJournal users?
Also, do we know which other diary/journal/blog/whatever sites support structured-data access, whether RSS/RDF or something else? There are some blogs on Blogger that I'd like to read, but I don't want to hit five more sites every day, I'd really rather access them through my friends list. (If Blogger has a friends-like mechanism, I haven't found it yet; I haven't explored their site much.)
What are the copyright implications of syndication? I'd think it's on shaky ground without explicit permission from the original site, but then, I've never understood how Google can get away with caching pages, and AFAIK they're not getting sued left and right...