Finally it's released into the wild.
Don't all rush at once. Especially if you have FSX, or FS9, or 2002, 2000, or FlightGear, or X-plane, maybe even YSFlight.
At least it's free, for the basic Big Island and the Icon A5.
Save your bandwidth and get Rise of Flight Demo instead.
I played the beta, and whilst I had little or no issues running it nicely (aside from excessive loading times - for one small island!!!) it was just soooooo sterile - even when they wanted the MP servers maxed out it was just empty!