A month ago, you have post that you have developed a backend for Trust Imagery 9600SP for sane in which you appointed that you are the only possessor of an VM6552 device. In fact this is not true, because there are many possessors of this device. In fact I don't have such device, but my friend who don't use Linux have. I found that the only way to work out is to run with Sane. I not approved that you wouldn't release your backend, for the reason that there are so many people with this device. If you google a little bit, you find that so many people request for a windows xp driver. So if de device will ever work with sane, why do not to release this driver. I understand that you have to develop a new backend for a few scanner, but in time you can release your patch for teco3 for the other people who own a VM6552 device.
Regards Andrej Suligoi