I needed a latitude and longitude picker plugin, but after quite a long research I couldn’t find one that suited our project – so I just wrote one using jQuery. Maybe some of you are interested, here’s a demo and the code, for free: http://www.wimagguc.com/projects/jquery-latitude-longitude-picker-gmaps/
(The website I’ll use it for is still under construction, but the preview is open: divespy.com)