Whoa! You're way behind the times. Jack Cashill has authored a whole book on Big Ø's history of deception, and half or more of the book is devoted to the "writing issue."
Just go to Amazon, Barnes and Noble, or Google -- and do a search for Jack Cashill. Then order the book and enjoy!
ah, I read a good bit about the proposition that Bill Ayers had written Obama’s book but I had never seen an actual example of his writing. I didn’t think there was any. Thanks for the book tip.