Satellite-based navigation is a very popular technology with consumers, and the upsurge in purchases of GPS (Global Positioning System) devices is fuelling a similar growth in the market for GPS receiver chipsets. A new study from ABI Research forecasts GPS IC shipments to reach one billion annually in 2013. Average Selling Prices (ASPs) will continue to fall, but the effect on vendors' revenue streams will be more than offset by this strong growth in volume.