I'm building apps. The projects I'm currently working on are a heavy-duty collaborative task manager (think Asana), a task manager + email client (think Mailbox, but with tasks and for the web instead of mobile), and a note-taking app (think Evernote).

Before that, I worked on other apps using Ember, as well as one or two more "website-like" projects that are mostly static, but had a few interactive widgets. FWIW I think Ember was overkill for those, and I would've been better off just going with normal HTML/CSS delivered from the server and Backbone for the widgets.

Ember bills itself as "a framework for creating ambitious web applications", and I agree with that use-case completely.