The thing is, you'd better go back to school and take some marketing classes. You're turning a good thing into a PR disaster.
Have you ever read "The Boy Who Cried Wolf"?
For a year, you've been posting on an enthusiast forum about this remarkable new scanner that you've been "working on". You solicit all sorts of advice from your potential customers, and keep lifting your skirt to show them some cheap peeks at the thing.
Now, at Photokina, you only have a non-working model (presumably).
Your excuse is that you "don't have a decent negative to scan", so you can't post samples??
If that doesn't trumpet incompetence, I don't know what does. How can you develop a scanner without scanning negatives??
The excuse that you don't have any photos to scan is SO silly that you seem like a liar. (whether you are or not, I'm not making a judgement on your character, I'm just telling you truthfully how you come across to an observer.)
So you're coming across as evasive, incompetent, and someone who doesn't mind hoodwinking all your potential customers.
Nobody is going to die from lack of a scanner, but you keep teasing, making claims, and you still don't have the goods. No wonder your potential customers are turning on you.
If you want to salvage this PR mess, post an honest reply.
1) The scanner is ready to go to production, or not? Yes or no?
2) Your engineers MUST be scanning something to test the scanner if, in fact, there is actually a working prototype. Post a sample or say you don't have one. If there is a major problem with the scanner that needs a lot more time to fix, say so.
3) Don't keep posting dates and predictions. When and if it is ready, it will be ready. If the sample at Photokina is just a non-working model, say so.
4) If there is no imminent date of delivery, return the money to those who have paid or made deposits.
What you have done so far is a textbook case of alienating your customers. You are not helping your case by making ludicrous statements.
Guys, lets be civil about this. I realize that people are disappointed that the scanner isn't available right now. No one is trying to deceive anyone. What would the benefit of that be?
Those of you that are or have been involved with manufacturing understand that there can be things as simple as the wrong color paint that cause delays. So launch timing isn't an exact science.
Regarding the images. We have a lot of good engineers on staff but not so many good photographers. The product manager for the OpticFiilm scanners is a good photographer, but she is busy getting this thing out the door. So what good would it be to post an out of focus photo of a wall or an unexposed photo of a lamp?
I do have decent negatives that I can scan but I was trying to get some involvement from you guys here if you were interested.