I started a
thread about the Apple promo before I saw that you were discussing it here. I've listed the 8 US titles there.
Try this URL
http://tw.apple.com/greatfreebooks on any device with iTunes installed (iPhone, iPad, PC or Mac with iTunes installed) to see what's available where you are (I think).
I was able to get all of them on my iPod Touch 4, even though I only have iOS 6.