Apple has traditionally been -- how shall we put it -- cagey with revealing memory and CPU specifics of its mobile devices, but MacRumors is today reporting its discovery that the fourth-gen iPhone's RAM apportionment will be a very healthy 512MB. We've heard similar rumblings from reliable sources of our own. What it means is that iPhone 4 users can look forward to not only the same processor (though potentially at a lower speed) as their iPad compatriots, but also double the memory allowance. Of course, this will hardly be the first handset to offer half a gig for the OS to dance inside, but at least Apple's keeping up with the times. Wouldn't wanna disappoint all those pre-orderers now, would we?