First and foremost, the latest revision corrects an error that'd kept the speakerphone active after a push-to-talk conversation had ended.

ENGADGET: Refresh Roundup: week of July 30th, 2012 Mobile

Although some active managers may experience more short-term volatility and higher tracking error with their benchmarks, this growing trend should lead investors to look to active managers with long-term track records of strong risk-adjusted performance, as I foresee on-going attractive equity returns in the years ahead.

FORBES: Stock Market Logic

Flying at 235km will allow little margin for error, especially if the Sun becomes more active.

BBC: Goce gravity mapper surfs atmosphere

However, as index-based mutual funds and ETFs continue to gain popularity and active managers are increasingly pressured to control their performance tracking error relative to benchmark indexes, the markets could become less efficient.

FORBES: Equal-Weight Indexers Didn't Suck Wind For A Decade