Twitter has been making some more hires recently – first up is Robin Sloan, who joins to handle media partnerships. Sloan previously worked as a strategist and executive at Current TV. During the first presidential debate of 2008, Sloan built an application to overlay tweets on the bottom of the screen. Spookily he was also the author of Twitter’s 5 billionth tweet. Also joining is user experience designer Mark Otto, who worked at ZURB, an interaction design firm whose listed clients include TinyPic and CC:Betty. And finally Dan Webb, the London web developer behind Twaudio, which brought…

