Mark Papermaster, Apple’s Senior Vice President of Devices Hardware Engineering, has left the company following a number of highly publicized stumbles with the iPhone 4 launch. The New York Times, which broke the story, reports that it is not clear if Papermaster quit or was asked to leave; Papermaster has until this point declined to comment. Apple spokesman Steve Dowling told the NYT that Papermaster “is leaving the company and Bob Mansfield,…