One of the best things with Globalsat is the constant strive to improve products through new firmware. Unfortunately, I think most users outside this forum is not aware of it. This leads to that users isn't utilizing their watches to the max and also to cause dissatisfaction with the GS-watches when comparing them with other brands etc. it can also cause bad reviews in mag. since they don't have updated firmware. This happened with the 625-review I translated earlier.
I think that in the included manuals you should emphasize the possivility of upgradeing the firmware much more than you do today. I would therefore like to suggest that you have the possibility to register your watch on the website and then get notifications by email when a new firmware is out.