Except that a librarian wouldn't read you the book over the phone. The google project is basically putting all books online, that is a violation of the law. You can already use the internet to find books now.
No. You can't view the entire content of the work. You can only view a part of the sentence that contains the search term.
When you click on a search result for a book from the Library Project, you'll see the Snippet View which, like a card catalog, shows you information about the book plus a few snippets – a few sentences of your search term in context. You may also see the Sample Pages View if the publisher or author has given us permission or the Full Book View if the book is out of copyright. In all cases, you'll see 'Buy this Book' links that lead directly to online bookstores where you can buy the book.