Not quite... Although certainly not a comparison to WXWorx. This is not a mobile solution.
NOAAPORT requires a 8-10ft dish, downconverter, and decoder box. Anywhere from $500 - $1500 (max) depending on what you can rummage up for free (same dish as the 'old' TV satellite receivers use.)
From there you can pipe the data into a Linux or Windows box. Windows only supports the text products, Linux will feed EVERYTHING into GEMPAK or whatever else you want.
There is no cost other than the hardware. Everything else is free... Look for the data flow to expand considerably via NOAAPORT with time, as the new system supports T3 speeds!
- Rob