eBay Motors + Google Maps Mashup

I'm working on listing my father-in-laws BMW on eBay which got me to thinking about the eBay Motors + Google Maps mashup that Adam Trachtenberg and Luke Wroblewski put together for Web 2.0.

It will be interesting to watch how intellectual property law will evolve to handle these mashups. Will NavTec reconsider it's agreement with Google? Will more companies like eBay open up their infrastructure and APIs for this usage?

Also here's another recent mashup, Frapper, which allows you to plot any number of addresses onto a map yourself.