Sure, Apple's "Back to the Mac" press conference was all about software and a manila envelope or two, but Cupertino also sent out a silent love letter to its MacBook Pro lineup. Specifically, the 15-inch and 17-inch MacBook Pro laptops can now be configured with a 2.8GHz Intel Core i7 processor, up from the 2.66GHz model they were limited to before, for the primo price of $200 more. That's a