US-based GAAP and SEC reporting experts in the global audit firms review the workpapers behind the filings for every non-US based audit client that is listed on a US stock exchange, all over the world, before any filing with the SEC.

FORBES: A Legal Secret Weapon May Help Hold Deloitte US Firm Liable for ChinaCast Fraud

Summary: Although convergence between US generally accepted accounting principles (GAAP) and International Financial Reporting Standards (IFRS) has been the subject of much debate and collaborative effort, it is still unclear when the US Securities and Exchange Commission (SEC) will make a determination about how to proceed, or what its final decision is likely to be.

FORBES: Finance

In order to provide comparability with the results of other US wireless carriers, all financial amounts are in US dollars and are based on accounting principles generally accepted in the United States ("GAAP").

ENGADGET: T-Mobile lost more customers in Q4, will launch LTE in 2013 with AWS spectrum from AT&T