iPhone MKMapView Annotation Clustering
You don’t necessarily need to use a 3rd party framework because since iOS 4.2, MKMapView has a method called – (NSSet *)annotationsInMapRect:(MKMapRect)mapRect which you can use to do your clustering. Check out the WWDC11 Session video ‘Visualizing Information Geographically with MapKit‘. About half way through it explains how to do it. But I’ll summarize the … Read more