It looks to me like it has a bit of a rounded back. Does anyone know definitively how it lies on a table (or other flat surface)? The current iPhone lies flat obviously, and Im a little concerned about the new one wobbling around... Which brings me to my second question... How resistant is it to scratches (and cracks)? Does anyone who has handled one know if its some sort of polycarbonate? I know Ive dropped my phone a couple times, and it just put a few little scratches on the aluminum. But Im afraid that those drops might actually CRACK a *plastic* shell. :-/ Thoughts? Comments?