I think you're thinking a little too short-term here. It seems like a jump in technology that could completely change the way people build apps.
Once you have a basic HTTP database API, you can do most of an app in client-side JS. Security is the hardest part to get right. In CouchDB we've tried to follow the web security model when it makes sense (single origin policy, oauth, etc).
CORS and WebSocket are both changing the web model, so it's not surprising to see the idea of a simple data API catching on as the web gets more power. Can't wait to see where this goes.