Wo ist der Eismann? (Where is the Icecream Man?) — Eis-Wagner is a very popular icecream truck in Ilmenau, Germany.
His movements are observed by a GPS receiver and transmitted to www.wo-ist-der-eismann.de (in German).
You can find out whrere he is in real-time with this widget that uses the Web page for displaying the current position on a Google Map within the widget.