John Saito just made a great case for using the right Capitalization of characters in your UI. I’ve been doing a lot of cross platform UX design lately and I’ve begun to appreciate the advantages of Google’s approach to ALWAYS using sentence style text. I’m a fan. Enjoy the story: 

https://medium.com/@jsaito/making-a-case-for-letter-case-19d09f653c98#.6gnzii10x