Philipp Humm, the CEO of T-Mobile US, has resigned, according to a report from All Things D. While no official reason has been given, an official statement given to the publication tells us that Humm is heading back to Europe to be with his family and will look for a career outside of Deutsche Telekom. We're still waiting to receive the full statement from T-Mobile, and will update this post as we get more information. DevelopingT-Mobile US CEO Philipp Humm resigns originally appeared on Engadget on Wed, 27