Hi, I’ll do a proper blog post, but here is an example 3rd party app:
http://birthday-agenda.herokuapp.com
Also an article: http://themobileinnovation.wordpress.com/2013/10/02/how-to-quickly-make-an-html-5-app
Are you working, designing or prototyping app that could use or uses data/Primus API? I’d like to know, we can help you!