The problem with hyperspectral imaging is that it ends up throwing away 99.9% of all the light that hits your camera. It's been done for the sun and some very bright nebulae, but really isn't practical for most of the stuff in space.

probably will come out within the next 5 iphone generations.

POC already out...

https://pmc.ncbi.nlm.nih.gov/articles/PMC8404918/

People have been making production hyperspectral sensors for decades, including hobbyists in garages; we're well beyond the proof-of-concept stage.