Thanks for your question! We are accepting proposals that are at both the pitch-only stage and functional prototype stage. Send us what you have! Once we've reviewed, we'll reach out to you for more details.
In the first phase of applications, they are considered equally. During the final (live) pitches, a functioning prototype will likely score higher; however, it's highly variable. A brilliant pitch for a feasible and scalable technology will score higher than a weak prototype.