For the folks who have to make graphics for all devices under the sun, any time that can be saved is worth saving. The Illustrator script ai2html, from New York Times graphics editor Archie Tse, converts Illustrator files to HTML and CSS.
In case you're wondering why:
Text in images and SVGs scale as you scale the image — so your text becomes unreadable pretty quickly as the artwork scales down, or looks hilariously large as it scales up. By rendering the text as html, we can scale the "graphic" up and down, but keep the text readable at the same font-size and line-height. This is important because we are trying to reduce the number of versions of the artwork that we have to create in order to accommodate viewports that range from mobile phones up to giant desktop monitors.
There are plenty of examples of the script in use by NYT.