From the WaPo:

Apple Computer Inc. took 20 days to reach 1 million downloads of video files from its online store; the Web site SuicideGirls, offering free videos of unclothed models, hit the mark in about a week.

Sadly, I see that not only has Forbes and thousands of others come up with the obvious pun, so has Steve Jobs. Even iPr0n has been used many times before.