Twitter's head of mobile EMEA Ross Sheil departs

Twitter's head of mobile for the EMEA region, Ross Sheil, is stepping down from the company. 
Announcing the news on both LinkedIn and Twitter, Sheil said he was moving on to "a new challenge in the mobile technology world," but did not reveal details. 
Sheil worked at Twitter for four-and-half years as one of the first hires in EMEA for the platform. He started in business development before moving on to several roles in Twitter's mobile team including senior