Apple Accessories tend to value form over function. The protectors most certainly do look very nice. Since you're done with your 3g, would you mind performing an intensive scratch test on it and recording it and putting it on youtube?
Basically like any other scratch test you can use scissors and a key, and with pressure rub those items against the protector in a back and forth and oscillating motion. Then put it under light to see if there are any scratches.