Great write up! I wrote a bit[0] awhile back about setting html5mode routing with rails and angular using a similar setup which may be a useful addon to this article.
[0] http://mbell697.github.io/2014/02/04/yeoman-angular-rails-ht...
[0] http://mbell697.github.io/2014/02/04/yeoman-angular-rails-ht...