Hello,
I was just wondering why you all are changing to AngularJS. I know it was announced that you all were going to be making the change, but just wondering why you are going to AngularJS.
Thank you for your time,
To increase productivity of developers, make it easier to innovate, keep our technical debt low, avoid jquery soup, etc. 
Ultimately we want Piwik UI to use only APIs and no controllers (this will take years for sure). AngularJS helps us reach the goal step by step.