By Jonathan Allen NEW YORK (Reuters) - When Chinese activist Chen Guangcheng arrived in the United States in May last year he was given a fellowship at New York University, use of a Greenwich Village apartment, and a pile of gifts from supporters, including smartphones and an iPad. But at least two of the gadgets presented to Chen as gifts may not have been quite what they seemed: They included software intended to spy on the blind dissident, according to Jerome Cohen, an NYU professor who has been Chen's mentor, and another source familiar with the episode. ...