Sure, Apple could build a miniature video projector into iPods and iPhones, as per the rumors du jour. But the chances of this happening any time soon are really, truly low. Here’s why.
A few other reasons it’s unlikely: the parts aren’t cheap, they’re highly susceptible to failure, and users haven’t been asking for the functionality. This isn’t to say that other companies won’t try, but Apple is not going to be first or even early on this particular bandwagon.