Here's something we were not expecting. Sony is undercutting a lot of its competitors with the price of its first Ultrabook. At just $799, the VAIO T13 sports a sleek aluminum design and a third-generation Intel Core processor. And while you don't get a full-fledged solid state drive, the T13 promises the best of both worlds by combining 500GB of storage and 32GB of flash memory for fast boots and resumes. Is this ultraportable as good a deal as it sounds?