Medium's management unveiled a radically redesigned publishing platform on Thursday including a host of new formatting and production features. These new writing tools include the ability to include Twitter-style @-mentions, additional text formatting options (including drop caps to start paragraphs) and a slick "TK reminder" that prompts users before publishing that they've forgotten to finish a thought and left a TK reminder in the text. Additionally, the company is rolling out a mobile publishing app for both iOS and Android, as well as a developers API so that the CMS can be integrated into other sites and apps. Medium has also made it easier to import existing blogs and publications into its custom domain system. Even the company logo received an refresh.