Actually, it looks like I misunderstood. "All April Fools' Day Jokes on the Web are Here (so they don't clutter HN)" was the top link when I opened HN today so I thought it was some official stance. It appears to just be another submission. My bad.
Isn't it far more likely that the meeting was about jobs' health, and the least suspicious story to tell a business partner to avoid speculation would be to say it is a meeting about the next iPhone?