I think it’s here to stay, too, and thankfully the main issue with it is fixable: the lack of tactile feedforward/feedback. If the display had little grooves to separate the controls and used the same 100% convincing fake button travel used in the trackpad, I think it would be an excellent enhanced fn key row. You need to be able to rest your finger lightly on a key without pressing it. (The same needs to happen with smartphones/tablets too, fwiw)