Thanks! One of the next features we'll on work will be support for arbitrary folders (basically all notes will be plaintext inside folders, currently they are all plaintexts but inside a local database), so you could sync your notes with any cloud provider (e.g., Dropbox). We'll also provide our own built-in sync option. There are plans for sharing notes, but not quite for real-time collaboration, if that's what you mean by "multiplayer". There are plans for collaboration in the future, but not real-time - I just don't think real-time collaboration is good for text-based formats.