Are the 28 Days folks actually Zombies? I haven't seen any of them before.... I WILL watch them someday but they are never on when I can catch them.
In my opinion and by my definition, yes. There are the purists that feel only those raised by some form of the dark arts or unknown force to be zombies. I include those that are infected by some virus as well. If the hoards coming at you are the mindless humans that are no longer human and it takes a head shot or decapitation (or some similar completely gruesome means) to stop them, and their only goal is to eat you; then they are zombies in my book. So yeah, for me, "I Am Legend", "28 Days/Months Later", "The Crazies", etc. are zombie movies. And dang good ones at that.