I loved this when it came out last Christmas and have been awaiting merchandise. The book and toy were smaller than i expected but still lovely. Do watch the price as i found this for half the price in a supermarket after I had already ordered this.
This was my first ebook purchase and downloaded eagerly to my Nexus 7 via the Kindle App on 29 December 2012. The book is lovely, beautiful illustrations although a couple of typos (as another reviewer has already noted). Personally I wasn't too bothered about the lack of audio, Little One and I were content to look at the book together, enjoy the story and pictures and learn the names of the little boy and his dog, though I presume once the issues have beens sorted with the publisher I will be presented with an updated audio version to download.
However, Little One is keen to receive a "proper" book so no doubt will purchase same when it is released - not sure what the delay is as clearly such a book exists for it to have been scanned into the ebook format.
I think that Raymond Briggs can be very proud of the authors / illustators who put this book and the film together.