I have an unusual situation. I want to possibly get an iPad as a gift for somebody overseas. Internet is very spotty and involves a USB dongle with prepaid SIM. My question is what content can be synced to iPad from an iMac, with all content downloaded to the iMac. I am thinking that videos, music and apps can sync, but e-books via ibooks cannot, since there is no ibooks for Mac (gross oversight by Apple IMHO). Can anybody confirm this is the case? Not being able to use as an e-reader would be a deal breaker. I note that there is Kindle for Mac and for iPad. Can one sync Kindle e-books via the usb cable? Wish iOS was more open.