If the 15-inch MacBook Pro with Retina display was feeling lonely up there on its high-resolution pedestal, it needn't any longer. As expected, Apple just announced a 13-inch version to keep it company. The 2,560 x 1,600 resolution means that 13-inch screen offers a ppi of 232, marginally more than its larger brother's 226. While this might not be the primary focus of the day, it will definitely be one of the more hotly anticipated reveals from the company's San Jose event this afternoon. In the meantime, keepyour retinas locked right here for our hands on.