Complex sentence: In 2006, while developing the first Apple iPhone, Steve Jobs discovered that keys placed in a pocket with the prototype could scratch its hard plastic surface--and resolved to find a glass sufficiently scratch-resistant to eliminate the problem.
Split into simpler sentences: In 2006, while developing the first Apple iPhone, Steve Jobs discovered that keys placed in a pocket with the prototype could scratch its hard plastic surface. Jobs resolved to find a glass sufficiently scratch-resistant to eliminate the problem.