The dominating Apple-focused blog traffic this week has been — not surprisingly — all about the new MacBook lineup. Apple introduced the new notebooks at a special event Tuesday, and while online chatter has been all over the map, Apple’s new Nvidia graphics architecture, the new single-piece aluminum design, pricing, glass trackpad, and LED-backlit displays make up the high points of the conversation. Apple’s new processor and graphics architecture lets the company continue to use Intel’s processors for primary CPU functions.