Neat - these things usually show up in the news as a render and then you never hear about it again. Being actually built full-scale is pretty cool.
Sails obviously work, the two questions with an automated metal sail for cargo ships are cost and reliability. Making moving parts that don't break down in high wind and salt water isn't easy.
Microsoft's thing takes a screenshot of everything on your screen and saves and indexes it. Opened up your password manager and revealed a password? Saved. Opened a porn site in a private tab in any browser aside from Edge? Saved. Opened up a private encrypted chat to try to get away from your abusive partner/parents? Saved and indexed. Logged into a portal at work showing HIPAA information? Saved and indexed.
Apple's thing is basically a better search feature of all the data you already have saved, that apps have already opted-in to sharing. It runs on device, and Apple has promised they do not send the data back to train the models. They also have some generic ChatGPT-like tool to help rewrite your documents, but that's 100% opt-in so nobody really cares about it, it's easy to just not use.