iPhone firmware 1.1.3 video walkthrough posted

It seems pretty clear by now that the images and videos floating around of an iPhone running firmware 1.1.3 are legit, but if you still have doubts as to their veracity, a new walkthrough that's been posted should put those to rest. We've already been nauseated by seen the jiggly icon home screen, and now we get a look at the new multi-recipient SMS feature as well, along with a brief rundown of Google Maps' impending cell-based location tracking -- which should also help Apple legal narrow its search for this rogue iPhone to somewhere in the Lynnwood, Washington area. Click down below to catch the full vid after the break.