I've been thinking about that as well - we do have a place filter against our existing "topics" feature, so you can subscribe to an ical or RSS feed from here:

http://lanyrd.com/topics/hacker-news/in/uk/

(change /in/uk/ to another place for different pages)

We may well add a /in/uk/ filter to guides as well, not sure how we'd expose it in the UI though.