SAN FRANCISCO :A fifteen-year veteran of Amazon’s devices division who had a hand in developing many of the most recognizable gadgets is leaving the company at the end of October, marking the second high-level departure in October. Lindo St. Angel, vice president of hardware for Lab126, plans to leave next week, Amazon confirmed following a Reuters inquiry. The circumstances of his departure could not be learned and St. Angel did not respond to a request for comment. “We are grateful for his