This is an interesting sign of the way technology is headed. The new iPhone 14 has a feature that provides for emergency texts via satellite when out of range of a cellular or wifi connection.

Details here: Use Emergency SOS via satellite on your iPhone 14

There is also the suggestion that this may eventually be a paid service: "Service is included for free for two years with the activation of any iPhone 14 model. Connection and response times vary based on location, site conditions, and other factors."

It's not a substitute for a real PLB. (Yet?) On the other hand, there's probably 2 billion more people that have an iPhone than have a PLB.

This is definitely early days for this feature. Unclear how good it is right now. But just imagine what we may have in 5 years!