This is a fantastic overview of the new hardware and software Apple is unleashing in the coming days, including a great summary of why the move to 64-bit software is about more than just RAM access. Gruber writes:

The iPhone 5S and 5C

What I find remarkable about the 5S’s benchmarks is not that they’re the current top scores in the mobile world, but rather that they’re at the top despite the fact that Apple famously values the ratio of performance-to-power-consumption far more than performance in and of itself.

Apple doesn't do these types of things just because. There is a real, tangible benefit from it, and I'm confident we'll all see that benefit in the coming years and versions of iOS and the software that runs on it.

I can't wait to get iOS 7 on my iPhone 4, and I can't wait to get my hands on an iPhone 5S.