I propose adding the day's globalhash coordinates to the day template so that all future pages include the globalhash coordinates for that day. I've done all the template work necessary for it to auto-include each day.
Below is an example of the day page contents (using 2009-12-10). The appearance of the globalhash coordinates is defined by the template Globalhash/Todays Coordinates.
Note that I didn't include the date navigation template because it doesn't accept a date parameter and spews angry red errors.
-10.616783344268, -39.483617119189 (Nominatim)
Expeditions and Plans
|Palm Beach, Florida||Dtobias||On the lot of a (Mercedes) car dealership in Delray Beach, just off I-95 at...|
|McMinnville, Oregon||Jim||Dixon Mill Road, apparently in Gaston, Oregon|
|Berlin, Germany||then meet, davidc, lyx, Phoenix, relet||Behind a supermarket, in the Volkspark Mariendorf. Might be right on a fenc...|
|Turku, Finland||Suurnesu||was again quite close to my office, so I decided to pay a visit during my l...|