Google sent the email marketing world into a frenzy last month when they announced that Gmail is finally introducing support for embedded styles and CSS media queries. For the developer, embedded styles can save precious time spent typing the same inline CSS over and over and over and -- yeah, really annoying.
For the recipient, an email enhanced by the use of media queries can be much easier on the eyes. Basically, Google is stepping it up for everybody. This totally makes up for that weird thing where they made us all use Google+ for, like, a week.