Well Bevan, you're probably right. The 396 is barely in it's infancy at the moment I guess.
Stay tuned though coz in the not too distant future I predict 3-Dimensional GPS with full 3-Dimensional terrain mapping, with external aircraft views, head-up display and integrated everything. Imagine flying through a valley in total darkness, 50 ft above the deck with your 3D GPS, ground proximity warning and radar terrain mapping and night vision!