You haven't got the clicking on markers to produce the info window absolutely right here. Once the enhancements that came in with googlemaps v2.50 are stable it would be good to put the pub name in the "title" field so it appears when you hover over a marker.
Done!!! - it only works when things aren't draggable - or maybe thats a coding problem on my part
Oh that's nice. I can feel that coming on for Canalplan.