Re: Lytro, I gave them that precise advice back in ~2008, and I believe they had already talked about it. Nearly 10 years later, their cinema camera boasted 'lens emulation' but I'm not personally convinced it emulated bokeh digitally, despite the whizz-bang stage demos.

Sadly, you need to have significantly higher light field resolution to do an 'acceptable' job of approximating lens aberrations, and in the end it probably wouldn't look better than a 2D filter approximating it. Nonetheless I like the idea.