OpenStreetMap GPS Visualisation

I frequently get emails asking me about visualising collections of GPS traces as an animation. The OpenStreetMap community is way ahead of me on this one, and has a tool called Party Render to create animations of mapping activity.

Here's one that Mikel just pointed out from a recent mapping party in Mumbai:

[kml_flashembed movie="http://www.youtube.com/v/EuDJu7JM2iI&hl=en" height="355" width="425" /]