1. I love seeing the rapid development and deployment of features that make a great place even better. 2. On a social protocol-level, I'd love to see a client mimic some G+ features like "Circles," but lack the dev chops to build it myself. 3. Can't wait for even more non-social use cases. Specifically, I'm eager to see great censor-resistant solutions for videos, 3D files, and a Github killer.