Why do you call it "free"? I see no pricing information when I look on amazon.com, and on amazon.co.uk it is priced at £32.99.
What country are you (or your proxy) in? For me, the link goes to a page showing a price of $0.00.
The UK. Free vs. £32.99 is taking differential pricing to an extreme. Have you succeeded in buying it for $0?
The hardcover price I see on amazon.com is $56.16, Kindle for $50.68. Amazon.fr still has it free, but won't let me buy it from the UK. Amazon.de has it for €50.94. I'm betting this really is a glitch currently in the process of being fixed.
Interesting that the title seems to contradict a prediction of Giulio Tonini's theory. The following is from Biol. Bull. 215 (2008):
[Integrated information] is low for systems that are made up of small, quasi-independent modules ... This may be why the cerebellum, despite its large number of neurons, does not contribute much to consciousness: its synaptic organization is such that individual patches of cerebellar cortex tend to be activated independently of one another, with little interaction between distant patches.
People without cerebellums live fine, except for some motor control issues. It definitely can't be essential for consciousness.
"Fine" might be a stretch, there are indices that indicate that cerebellum have cognitive functions as well. If you have any particularly source that says otherwise please share.
My source is my neuroscience professor, who paid quite a lot of attention to research on the cerebellum. But of course, any published science would override his in-class comments.
**** DEAL OVER: As of 20120611.
Another free kindle I thought some might have interest in. I haven't read it, but the first review was glowing and looked relevant.
First Amazon Review:
> Five Star Final; Excellent; A "must read" for any "student" of brain-behavior relationships
http://www.amazon.com/gp/product/B005DKQQG4/
UPDATE: Still free at the US amazon at 2pm eastern time. Reports that it is not free at the UK site, which I verified. Since I can log in to the UK site from the US and see the price, I assume people in the UK could sign into the US site and buy it. If anyone gives that a try, let me know and I'll further update the top level.
UPDATE: Free at amazon.fr. Can buy at the US site from the Netherlands. Can't buy from FR or US sites from UK.