> It sounds better, but is ARM actually handling the 64 bit ISA transition better than Intel's Itanium fiasco? (AMD's ISA won).
Yes. There's only one ISA from ARM (ARMv8), and it looks like it'll be adopted; Apple has already made ARMv8 devices, and a number of other companies have said they will in late 2014/early 2015.
Also, odd that Gruber doesn't mention graphics, and likelihood that this has an Imagination series 6 "Rogue" GPU.