The basic premise is pretty simple: Write in plain text, format with Markdown, put in your Dropbox, automagically publish on the web. That much works right now, you can (please do) sign up using your existing Dropbox account and play around with it: http://droptype.com
You can also create sub-directories and it will sync those as well. Every file or directory you add has a publish button you have to hit before it goes public.
We also support a couple MultiMarkdown metadata attributes (Title and Summary), and you can drop a readme.txt file in any directory and it will show up when you visit that directory on Droptype (we install a readme.txt for you to show you how the app works).
There's a few things we know we need to do and are working on them:
1. Themes - I'd like to see this working like Jeckyll or Hyde where you can configure the look of the site by putting files in each directory. We'd obviously need to have a few prebuilt themes.
2. Domain name redirection
3. RSS
4. Publishing a directory should publish all content already in there
5. Better navigation once you're reading a file
6. Integrate with Facebook, Twitter, etc to autopost to different services.
7. Syncing of other types of media - images, video, audio
We also have a few pretty solid monetization ideas, but I rather not get into those right now.
I guess the question is what can we do to make the service more compelling. It seems people that get it think it's a pretty good idea, but we're not getting as much people creating content as we'd like.