Now that it has been a few weeks since the release of the Raspberry Pi 3, support for the WiFi and Bluetooth chip has settled and you can use it with Raspbian. Support with Windows 10 IoT Core will be available in the early days via the Insider Program before it is pushed through to the full release.
As usual, with Raspbian ensure that you have your distribution up to date, with this guide we will be using Raspbian Jessie, at present it is still the ARMv7 32bit kernel.
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