I should probably mention….
That there is an Amazon Kindle promo for the eBook, making it 0.99 today and tomorrow in the UK and the US (sorry Japan). It was available at that low price yesterday too, but I was too busy to mention it while wandering a foreign land in search of a power plug adapter that would actually allow my laptop to function AND plug into a wall. Oh, the trauma of travel.
US link: http://www.amazon.com/dp/B00JHKCP02
UK link: http://www.amazon.co.uk/gp/product/B00JHKCP02