I decided to finish my blog posts with the same topic that I started with - the gaps between the developers and designers. Responses to my first post were interesting and insightful.
Knowledge of the features of these libraries would strengthen your case when a software developer shoots down your proposal stating 'lack of time' as a reason. Software developers in turn can turn themselves into amazing UX developers without much effort if they are familiar with these wonderful tools. Adding new UX features to their repertoire everyday, these libraries are bridging the gap between designers and developers.