After using all day, the only issue is even after selecting the uk as my area its still chucking up loads of US news, which to be fair I couldn't care a less about (no offence meant), but suppose I'm learning something
. All in all i love it and I actually think the facebook integration is pretty good.
Edit: just discovered the mute option to mute certain authors and also a news (uk edition)
Edit 2: I do seem to get force closes on some news items from particular authors when trying to view a story. Telegraph uk is one