Fit Brains expands its mind-training brand to mobile devices December 13, 2012 1:04 PM Jeffrey Grubb Jeffrey Grubb LinkedIn Twitter Facebook Google Plus Profile Recent Stories: How Smooth McGroove quit his day job to record a capella versions of classic gaming tunes (interview) Defiance developer cuts staff; MMO Rift unaffected EA appoints New York Times digital-product expert to its board Developer Vivity Labs is ready to challenge people's brains on the go with Fit Brains mobile.