Here is an interesting article on revenue recognition and how new pronouncements can affect the numbers.
https://www.cfo.com/article.cfm/14485618
The actions taken by Apple are consistent with revenue recognition rules, but are their financial results skewed? Do these new rules make financial reporting more transparent? Are any ethical challenges present?
Leone, M. 2010. Ahead of the accounting curve, too. CFO Magazine. March 25, 2010. Retrieved April 1, 2012 frm
https://www.cfo.com/article.cfm/14485618/1/c_2984368