Appearing in Toronto at Microsoft's annual Worldwide Partner Conference (WPC), senior Windows chief Tami Reller let slip some details regarding the availability of Windows 8: PC manufacturers are set to receive the Release to Manufacturing (RTM) version of Windows 8 in late-August, while consumers will be able to upgrade in late-October. The Redmond-based company also recently revealed that the cost of upgrading to Windows 8 Pro will be just US$39.99.
