Idea
Can multiple people, on different machines, "share" a document(s)/folder? Say a developer hosts a project. They could lock their project under a password. The developer could give their friends/associates their account username and project password. Then, their Sublimes could connect, securely, and they could work on the project together.
Acknowledgements
I know cryptosecurity is hard to maintain. Sublime generates income; I'm sure it can be done.