I hacked piCal 0.93 to view a google map in an iframe in the detail view ->
demo at my website...Actually I wanted to include a block that displays the appointments one day/week/month/category in a Google map to get a quick overview of all appointments in my neighborhood. Unfortunately, I come to my limits. Perhaps, however, someone enthusiastic about this idea and find a viable solution for Pical.
Add in the file modules/piCal/class/piCal.php following after the line 2165
<tr> <td width='100%' align='center' colspan='2'><iframe width='1024' height='768' frameborder='0' scrolling='n' marginheight='0' marginwidth='0' src='http://maps.google.de/maps?q=$location&um=1&ie=UTF-8&sa=N&hl=de&tab=wl'></iframe><br /><small><a href='http://maps.google.de/maps?q=$location&um=1&ie=UTF-8&sa=N&hl=de&tab=wl' style='color:#0000FF;text-align:left'>Größere Kartenansicht</a></small></td> </tr>
Good luck
migoe