The XML code for some of the gauges (and glass) are not in the sim yet. That's not the biggest problem though. The biggest problem is add-on support, which is still a long ways off. No Mustangs, or Spitfires. No P-38's, or Beaufighters. But worse, the SDK is still not finalized, so it will be some months, and maybe more than a year, before there are user-created sailplanes, scenery, custom airline routes, or any of the airplanes I love the most (F-86, X-15, and so on). Plus, if you want to customize your home town, it's going to be a while. Even if you can build an airplane that satisfies all the check boxes, you may not be able to get anything working if you can't write XML. This is not the old flight sim.