TheVerge's Joshua Topolsky summarizes the iPad 3 casing findings reported earlier today, but also adds his own sources regarding some details of the iPad 3. Image from RepairLabs As expected, the iPad 3 will reportedly include a 2048x1536 Retina Display, be nearly identical physically, and use the A6 processor. The A6 processor, however, is claimed to have a dual-core chip, not a quad-core one, at least according to his sources: What is surprising, however, is that our sources say that the A6 will not be a quad-core chip, but will remain dual-core. We've previously had heard that the device…