Remember the Apple Vision Pro? Remember? It was a big, ambitious swing from Tim Cook and Co. — a $3,500 headset that lets you experience "augmented reality" — or, if you follow Apple's demands for branding — "spatial computing."Apple first showed off the Vision Pro in the spring of 2023, and then started selling the device in February 2024, and since then … you really haven't heard much about it. Unless you've seen periodic articles about how the device hasn't taken off, so developers aren't building for ...