If you haven't lived under a rock for the last couple of years, your life has probably been touched by Apple in some way. You know, what with iPods taking over the earth and all. Tomorrow, your world may shift even more dramatically. It's Apple CEO Steve Job's keynote address at the annual MacWorld conference, where he is expected to announce Apple's latest revolution: a foray into the cellphone business. No one actually knows anything about it, because if you could figure out, it wouldn't be cool enough for Apple. Suffice it to say, should the rumors be true, after 9 AM PST tomorrow, everything we know about technology might be different again.