Better than a Garmin 396?

VistaNav™ from Mercury Computer Systems of Massachusetts is due to
debut this month. With its 5" by 8" 100 DPI LCD display, 3D
solid-state inertial navigation system with a WAAS-enabled GPS
receiver, 3D solid state gyros, and a Bluetooth® wireless interface,
VistaNav™ looks like just what pilots of light aircraft have been
wishing for. Priced at $3990.00 VistaNav™ plans to offer an optional
weather data link to complete the package:

The VistaNav™ multifunction flight display
http://www.mc.com/vistanav/index.cfm is the first portable MFD
with 3D synthetic vision. This affordable, intuitive backup
navigation system provides ultimate situational awareness. During
flight, VistaNav generates and displays dynamic, realistic,
synthetic 3D imagery, providing a cockpit-like view regardless of
external conditions.