the company for the foreseeable future. that's the real concern for wall street. >> there was a national economic importance tied to the health of steve jobs, and at that point stockholders were beginning to ask what was going on. >> in the city of san francisco today, apple's ceo steve jobs returned to the spotlight. he appeared on stage at a company event after a six-month medical leave. >> when he came back to work, his voice wasn't weak or anything. he was drinking more water, but essentially it was just as it was when he looked physically normal. >> he has wowed the world time and again with his bold inventions. and this week he did it again. >> the ipad. >> to be at the front of the line at the san francisco apple store you had to camp out, starting at 10:30 last night. and that's just what max ackerman did. >> the ipad. and i was first.