I called the apple support today. I asked how do I get PDFs into iBooks on my I touch. Apple Support: how did u get I books on to your I touch Me: I upgraded my ios to 4 Apple support: there is no such thing. Did u jail break your I touch. Me: no. Ios4 came out just a few hours ago. I just plugged in my touch and upgraded to ios 4 Apple support: well u shouldn't have I books on ur itouch and u shoulnt be jail breaking ur I touch. Then I hanged up the phone. Btw true story.