According to your GPS Module Tutorial it seems that the SKU#: GPS-EM406 is the GPS module with the most advanced features. Are there any drawbacks to this module as compared with the other modules you offer?
Sam
i have had my EM406 for about 3 days now and i can say it is awesome, the only downside is there is no way to mount it on a pcb or in a case, sort from hot gluing it in.