Walt Mossberg on MacBook Pro’s sealed in batteries

Walt Mossberg has his official review of the new MacBook Pro batteries written and published, and his results and insight are very interesting. He makes some very good points regarding how well the built-in batteries in these machines will work for various users. He also describes the growing trend of laptop manufacturers to have built-in batteries, as research has shown that less than 5% of laptop owners purchase an extra battery anyway.