just a follow-up to the ipad survival guide i'd like to recommend the "Take Control" books from oreilly.com, there are a few of them on various mac and iphone related topics. they are generally around $10-15 each and downloadable in DRM free .epub and PDF formats. they don't have an ipad specific one yet but they do have one on the
iphone 3.0 OS ($15) and one for
iphone applications