The official site for Microsoft Flight has been updated with some new information, announcing that the title is expected to launch in US spring (so our autumn) and will be free to play:

Today, Microsoft Studios premiered Microsoft Flight, a PC game that lets players jump into the challenge, fun, and freedom of flight. Microsoft Flight will be available as a free download this spring, giving players the freedom to fly the skies over the beautiful Big Island of Hawaii, complete a variety of exciting missions, test their skills in flying challenges, or find hidden aerocaches on the island.

In Microsoft Flight, players view the world from above in a visually stunning and realistic representation of the earth, complete with region-specific weather patterns, foliage, terrain and landmarks. Players can choose to take the helm using highly rendered, accurate cockpits and authentic piloting procedures, or simply use their mouse and keyboard to control the plane in an exterior view. More experienced players can tailor the flight controls to match their skill level, making Microsoft Flight easy for beginners while still challenging for the most accomplished PC pilots.

Pilots will be able to extend the game either by signing into Windows LIVE (to get new content and features like "the legendary Boeing Stearman plane, supplementary missions, and access to Achievements and an Online Pilot Profile") or by paying cash for new aircraft, regions and other customisations.

A new gameplay trailer is available which you can watch below, but don't forget the game is currently still in beta and you can sign up to test it out now here.