Ah god, i remember learning "VBScript" and had some serious talk about whether it was better than Javascript or not..

Which one do you like best ? Mine is 400,20,500... feels more natural

In french we call it "the Waterline". I think it is a nice metaphor even if it doesn't really relate to to digital context.

See this thread on Quora : http://www.quora.com/Apple-Inc-2/How-does-Apple-define-digital-content-when-taking-its-30-cut

The border can be really thin.. In your case i guess you would need to tweak your business model to dissociate your app (that you would be give away for free), from a service outside the app (that would be sell for 100$/month) The app would react differently if you are registered as a 100$-a-month user or not

you may have a look at companies that use freemium business model such as Vimeo or Spotify (same app, monthly fee for getting more from it)

yes : http://dribbble.com/shots/1231948-Full-HTML-Responsive-page

See how the website keeps responding to media queries while the menu is open !

What an inspiring article...

THIS : width : 100% - 20px;

some feedback (personal) : - clean your screen before taking shots - you have a margin problem - the Ovo font looks weird with the Raleway - your form text inputs are too big