Without any fanfare, Apple has updated the specifications of its 13in MacBook.

Apple's changed the MacBook's processor, memory and storage specs
Although still based around an Intel Core 2 Duo, Apple’s upped the processor speed from 2.0GHz to 2.13GHz.
But that’s not all, because Apple also increased the MacBook’s storage capacity from 120GB to 160GB. Buyers will now even benefit from 2GB of 800MHz DDR2 memory, instead of the 2GB of 667MHz DDR 2 fitted previously.
None of the technical improvements impact the machine’s price, which remains unchanged at $999 in North America - though it's now £749 in the UK, up from £719 for the previous version. ®