That sounds like a fascinating concept! Combining the quality and design elements of Teenage Engineering with the functionality of a physical note-taking device could result in something truly innovative. Having physical buttons for creating new notes, zapping them, and navigating through them adds a tactile and intuitive dimension to the experience.
As for who might be making such a device, it's hard to say without knowing the specifics of the market and demand for such a product. However, given the creativity and ingenuity of the tech industry, it's not out of the realm of possibility for someone to take on the challenge and bring this concept to life.