I've attached some code that is currently for a standalone block, but could be used within this new system.

I didn't want to go with it being a standalone block because I think it's better to have it come through the already-existing mechanisms in Composr (e.g. the main_rss block, which supports feed aggregation etc). We need to streamline stuff.

Closing this as it is pretty much already possible using http://fetchrss.com/