While Amazon is being as coy as usual when it comes to an actual number (still keeping to the vague "millions" figure), the company has revealed that sales of its Kindle hardware has tripled since the price took a plunge from $259 to $189. While it's hard to gauge just how many champagne corks are being popped over that statistic, news that downloaded kindle books has overtaken its hardcover brethren is certainly cause for m
