Apple released the major iPhone OS 3.0 update just last Wednesday. Since then there have been conflicting reports of how quickly users are upgrading to the new OS, which offers a number of benefits to users of all of Apple's mobile devices.

Apple reported on Monday that over 6 million users had downloaded the 3.0 update so far. Given the approximate figure of about 40 million iPhones and iPod touches out there that can use the software, that represents about 15 percent adoption. If you count in the over 1 million iPhone 3GSs sold with 3.0 already installed, that works out to about 17 percent. We're inclined to believe that number is increasing daily, but Apple did not have a more recently updated figure to give us.