I don't know if I'd go so far as every penalty call. Games could end up being 5 hours long. But, personal fouls and P.I. calls (anything besides taunting) that leads to a 15 yard penalty should be reviewed. College game has a nice system with the Targeting calls and I actually saw some of those overturned this year. So, for the NFL to say it's not feasible to add things like roughing the passer, defensive pass interference, hits to a defenseless receiver and crown of the helmet (spearing) to the list of reviewable or automatically reviewed plays is a farce.
I've been far more impressed with the college ref's this year in the games I've seen. As well, they still let players hit opposing players!!