Metro hasn't had a mention - it's not quite the same as the green-mastheaded version you find elsewhere in the world, but the same concept: a free lightweight morning paper distributed on public transport. It's from the same stable as the Daily Mail, but opinion-free.
It has regional variations. If I'm heading from Glasgow to London early in the day, I quite like picking up a few extra copies of the Scottish edition to scatter on the tube, in order to confuse unsuspecting commuters.

It's 20p. I prefer it to the Metro - I actually feel informed after reading it, plus it's got a nice modern design. (I believe some of the team from the now-defunct thelondonpaper were involved in its launch).