Both are open source. However, Foursquare open source places seems to be Apache 2 licensed where overture is CDLA Permissive 2.0. So not sure if you can port from one to another. It does my head in trying to work out the kind of licensing issues.
I'd imagine foursquare is much better on 'places' like this - overture has other things like building footprints etc.
I'd imagine foursquare is much better on 'places' like this - overture has other things like building footprints etc.