I find the service great. Though I wondered why I see the hashbang in my adress bar. Is it better for SEO? It's usually used as fallback solution for HTML5 history (pushstate, etc).
What about dynamic routes, like user profiles? Also, the ease of just letting you guys automatically take care of it would be ideal (especially if I was paying for the service.)
Not exactly sure what you mean by dynamic user profiles routes. With Angular or Ember routing and HTML5 pushState the app developer can create whatever routes they like. Please feel free to follow up with us orville@aerobatic.io
It would be great if third-party provider like SEO4Ajax could be integrated in your service through a plugin/add-on mechanism (cf. like Heroku or Appfog).