Dear community.
Thank you very much for all your posts. It is a great pleasure to see your emotions about this first post, and we are very happy that you have looked at the material we have prepared.
Please remember that SensGuitar is a prototype of a new kind of guitar. We don't want to upset or disrespect any guitar builders. If you have any feedback, please let us know - we're happy to learn from it and try to incorporate it into the next prototype version.
Below we'll try to address your questions, provide more information on some of the posts, and share your great thoughts.
Regarding the wood: since we are beginners in CNC milling, we decided to make the prototype from a cheap and soft pine wood. It is only for the prototype and the final products need to consider traditional guitar wood, of course. We designed a completely new guitar body and a completely new guitar neck, so there are two new kinds of displays integrated smoothly into the guitar.
As for the finish, it was not ready at the time of video recording. In the meantime, we added a natural colorless finish so that the guitar looks similar to the one in the video. You'll be able to see the current finish during the kickstarter live sessions on Wednesday, March 15 on Twitch, 6pm (Berlin time) at
https://www.twitch.tv/sensgit. As for your question about how the fretboard feels. It's hard to describe in a text. We put cover glass on the display, which is made by us so the steel strings don't hurt the neck display. Thus, it feels like a glass guitar neck. The frets are metal parts that were first CNC-milled and then polished so that they feel soft and comfortable. So far, the frets are not as round as we want them to be. We're still working on that.
As for trademarks and patents, we checked. To the best of our knowledge, there is no patent. We thought about applying for patents, but we decided to put it under an open-source license so that the community of makers and technicians can participate.
As for the idea of optionally putting a normal, non-displayable neck on the guitar. We have a CNC prototype for that, but we've been focusing on new types of devices to show the feasibility. In fact, the SensGuitar is designed to be expandable, meaning that manufacturers can start with a small, inexpensive initial setup (e.g., just the body display with traditional pickup setting) and expand it later with additional modules (e.g., the neck display and digital audio processing incl. FPGA).
As for the power supply. You are right about that. Right now, it takes two usb-c-pd based power supplies, which is a lot from our point of view. Meanwhile, we need 80 watts at the highest load. For the prototype, that's fine. We are currently optimizing a special PCB to run the board with only one power cable. We also want to be able to connect it to batteries.
We hope we have considered all your ideas and comments. If not, or if you have any further questions, please let us know.
On a side note, the idea of putting Doom on the body display is really funny. Since we think the source code of Doom can be found on Github and it is open-source, we will try to consider this application idea after the Kickstarter campaign.

Thanks again for all your contributions.
We look forward to hearing from you.