On Wed, 28 Apr 2010 00:51:47 -0700 (PDT), Abigail Brady
wrote:

I suggest the reason the WLL trains observed hadn't got maps that show
the ELL isn't that they have decided not to, it is that they haven't
got round to putting them on yet. Wait a month, then see...

Once the extension to Highbury and Islington is completed the two
lines will overlap, with a common stop at Canonbury, so they will need
something by then won't they?