Update 7:19 AM: As noted in our forums, the schematic's references DDR and NAND suggests that it more likely refers to some aspect of the device's flash memory rather than DRAM included within the A8 chip.
The post states it's flash storage.
Regardless of what some journo has written on a generic rumour site, I very very strongly disbelieve that an IC marked with "DDR" as part of its name, is a storage device. I am a qualified electronics engineer - I do this stuff day in, day out - I very strongly believe that IS NOT a storage device, and if it WERE... why would it only be 1GB? This is a RAM device, I'll put a large wad of cash on that fact.
I take it people understand that RAM often interfaces to NAND, and just because the word "NAND" appears in a schematic, doesn't mean that the IC shown *IS* NAND - those data lines are very possibly going TO NAND, outside the scope of what can be seen.