Could you explain a little more why you feel that way?

First and foremost, dependencies.

My apps cannot have third party services that it relies on. that would give too much problems with our own SLA's. If the SAS goes down, you are responsible.

Second: my stuff needs to be able work offline (at least o some degree) :)

Lucky for you one of our key goals is that we will always export to clean, unencumbered HTML and CSS. Once you export from Divshot you can use the output in whatever tools you want without worrying about compatibility.

Secondly, we definitely want to support offline capabilities (as a web app still, but it's very possible) and the ability to safely store all of your work :)

The editor itself is completely static HTML and written in CoffeeScript/Spine which gives us a lot of flexibility. We're exploring different opportunities for integration and possibly a downloadable version.

Sounds great! Cannot wait to see some source.