1) Why can't I delete ALL spam in GMail at once? 2) Why do the numbers for my Bookshelves in Google Books disappear? 3) Why bother to OCR tons of books if you have no intention of cleaning up all the errors?
Those are just three that hit me personally.
But it makes me wonder what a mess the long-delayed and ever-upcoming Google Editions will be like -- which independent bookstores all think will save them from being wiped out by eBooks.