From our own information we know there were actually some last minute revisions on the first iPad that ended up killing the camera and nixing an extra dock connector, so the camera(s) seem a particularly natural "addition" for the iPad 2. We've also heard that a revised screen is happening, though it's unclear if this will be a "Retina Display" or something more minor. On the USB plug front, which could mark a sort of adolescent transition of the iPad into "computer," our source says it's, sadly, very unlikely. We're particularly interested in this mention of a new touchscreen technology from the EDN rumor (perhaps stylus support or pressure sensitivity?) but we don't have anything else to go on there. Overall, it's still hard to tell if the next iPad will be a small update or something more splashy, but it's certainly going to be something.