A whole lotta deja vu, that's what. (Or yawns if you're a cynic like myself)
PortalPPC managed to get their hands on all three and literally stacked them up against each other for some comparisons. You certainly get an idea of screen resolution, brightness and size between all three.
Too bad the writing is all in some bizarre alien language.
Oh wait, I'm being told by our crack team of linguists it's Portuguese. Never heard of it, but if you can read it by all means sharesies! (We imagine it will involve discussing how awesome "black slab" is for a phone).