LatLng Tooltip is a handy feature – thank you for adding it to Google Maps.
My feature request? I'd like to be able to mouse over a spot on a Google Map and then put the lat and long in the clipboard. That would be very handy when working with other mapping applications such as MapSource or geocaching apps.

If you right click anywhere on the map and "Drop LatLng Marker" you can select and copy those coordinates to your clipboard.