Two days ahead of the big reveal of its iPhone rival, the Galaxy SIV, Samsung has posted this first official image of the new phone to Twitter, confirming two facts: The phone says Samsung on it, and it does, in fact, have a screen. From that we can only infer so much, really — it's a smartphone that looks a lot like other smartphones these days. However, the rumorers are guestimating at fever pitch — the Samsung fanboys are rivaling Apple's these days — and have been going into Thursday's announcement under the assumption that the Galaxy SIV screen will come in at 5 inches, which is .2 inches bigger than the Galaxy SIII, and that certainly looks plausible with this photo. Other leaked images and this video — both from less reliable sources suggest the phone will come in a smidge bigger than its predecessor. Otherwise, the whisperers suspect the phone will look pretty similar to the SIII, with different but much better insides — 2GB of RAM, Android 4.2.1, and a 13-megapixel camera (with maybe, but probably not 3D?), and the very fast Exynos Octa eight-core chip — all of which is obviously hard to tell from this Twitter photo: