Jean,
I want to encourage you to keep posting. I hope it didn't sound like I was giving you too much flack. I really appreciate knowing that you guys are listening. I also think that both you and the dive community as whole benefit from these discussions. I realize that this is a pretty specialized field and that although it is a business, anyone who gets into it does so mostly for the love of it and not because it is particularly lucrative.
I was just a little frustrated by the fact that when I first got my gear, I could see lack of the port lock as a potential serious problem, and then a few weeks back I was burned by it. Fortunately, I managed to dodge the bullet and avoided any damage, although it sounds like others were not so lucky. I apologize if my frustration came through in the original post. From my perspective, I am totally cool with using duct tape to secure the ports to prevent this from happening in the future.
Perhaps it is just that in some sence I am in similar position to you. I design optical instruments for a living (www.wyatt.com) and I know how much time and effort goes into testing and releasing even small design changes. Moreover, it has become almost second nature to me to look at the design of everything around me with a critical eye towards "improvements". Think of it as a bit of free engineering advice. For some companies, the last thing they want to hear is "free" engineering advice from their customers since it comes across as criticism of their efforts, and it is, but hopefully it is always constructive. You guys are free to use it or ignore it as you will. All I really want is to know that it has been considered. Also, I really want to see you guys flourish especially since I have now have a large personal stake in the company :-)