Packs with a separate dialogue track (packs made from scratch with background and dialogue audio) now play the original line when you listen to it in the Dub Stage. It was playing the scene with nobody talking.
New: a Credits screen under Settings → General → About.
The included sample scene "Cosmonaut Astronaut" uses footage and dialogue from Cosmos Laundromat, (CC) Blender Foundation | gooseberry.blender.org, licensed under Creative Commons Attribution 3.0 (creativecommons.org/licenses/by/3.0). The pack now credits the Blender Foundation as its author.