Recently, Apple has made the MacBook and MacBook Pro even faster with a slight processor bump. Now the MacBook Pro can be configured to run a 2.6GHz Intel Core 2 Duo chip, up from the previous 2.4GHz, while the higher end MacBooks are shipping with a 2.2GHz Core 2 Duo chip, up from the previous 2.16GHz. These are pretty minor changes, but they are much welcomed. As always, faster is better, as long as it doesn't get too hot. For pricing, visit the Apple Store.
I suspect that this slight increment in clock speed is related to the release of Leopard, as Leopard is more processor demanding, so power users would consequently want a faster chip. Also, TUAW writes that all of the hard drive upgrade options are now 5400 RPM or better for the MPB. Lovely.
Now I'm hoping that there will be processor improvements for the iMac too. :D