This is a fascinating little stat that echoes a few anecdotal statements I've heard before. Nielsenwire is claiming that a full 32% of iPad owners have never actually downloaded an app on the device, with another 5% only downloading free apps. That's a pretty crazy figure when you think about it -- with all of the functionality offered by third-party software on the iPad, almost a third of users have never, ever taken advantage of any of it.