It appears to be Vastly more expensive than aGPS for Mapoint. aGPS has sufficent features for my needs, and has been very reliable.
What you charge for a 30 day demo, TechGT charge to register the final add on.
Their demo is free to try, and although it has a 10minute test limit session limit before it needs to be restarted, it was usable long enough to confirm to me that it was worth the money. Navstar didn't give me that option.