GIS/Maps Analytics in QlikView is a very interesting topic and "Heat Maps" are one of the ways to display QlikVIew KPI indicators and to represent a density on a Geografic map (ex: population, deliveries, etc.)
QlikView customers and channel parners are interested in displaying their QlikView KPI indicators on Geographic maps but also sometimes on a building plan (ex: logistic warehouse, supermarket, hospital, etc).
Business Geografic has developed a mapping extension for QlikView (V9, V10, V11) namely "GeoQlik" and we have been a Technology Partner of QlikTech since 2006 starting with QlikView 8!
I hereby suggest you to have a look at our new mapping extension for QlikView 11 "SR1": GeoQlik v11.6: