A technology preview from Roland Future Design Lab is an early prototype or unfinished prototype that they share with musicians and creators to get feedback and input.
These previews allow you to experience and experiment with new musical technologies, interfaces, or creative tools that the Future Design Lab team is researching and developing. However, they are not finalized products, nor full blown features, not even a public beta - technology previews are works-in-progress that still need refinement. Hence, it truly is an advanced prototype.
The previews give you a chance to go hands-on with innovative concepts and share your thoughts on what you like, what could be improved, or any other suggestions you may have. Your real-world testing and feedback is invaluable to the Future Design Lab. It helps them understand what resonates with musicians and fine-tune the technologies before potentially developing them into commercial products.
While technology previews are functional, they are unpolished and may have bugs or missing features. This is intentional - the Future Design Lab wants your honest input on the core experience and creative potential, not a critique of a finalized product.
So in summary, a technology preview lets you get an exclusive early look at musical innovations straight from Roland's R&D team, and provide feedback that directly impacts the future development of those new technologies and creative tools.