A new (version 4) Fugawi demo is now free to download at
http://www.fugawi.com/demo/version4.html

This demo lets you try
- Fugawi Global Navigator, and
- Fugawi Marine ENC.

Fugawi Marine ENC supports both the free NOAA ENC (vector) charts and
the new NOAA RNC (BSB format raster) charts, which are he
http://nauticalcharts.noaa.gov/mcd/Raster/index.htm

Now all coastal water charts of the USA are available for free.

The demo works for 10-days and seems to be fully functional except the
PDA versions are limited to 2 maps and I think the software closes
after one hour, but you can restart it again immediately.

Fugawi Marine ENC has support for GPS navigation, autopilot, free Grib
weather files, AIS receiver input, and more.