Plagued with stomach pain Monday night, Padres reliever Tim Stauffer reached for his iPhone. Sure enough, there was an app for that. Using a WebMD program, he self-diagnosed an appendix problem and took a cab to the nearest hospital where he had an emergency appendectomy Tuesday morning. Unlike the organ he had removed, Stauffer has been an essential part of San Diego's early-season vitality. Mostly used in long relief, with one spot start on May 9, Stauffer has been the bullpen saver, throwing at least two innings in seven of his 10 appearances and allowing just one run in 23 1/3 innings -- a 0.39 ERA. And it's San Diego's pitching that has the club atop the NL West as the majors' biggest surprise this season. And in about four weeks Stauffer will be back by a phone again, awaiting the call from the bullpen.