You didn't think Dell was going to sit out the Ultrabook fad, did you? We'll never know exactly what the hold-up was, but whatever the company's excuse it finally has something to compete with the likes of the MacBook Air and ASUS Zenbook UX31. The company just announced the XPS 13, which weighs in at a shade less than three pounds (2.99, to be exact) and has a wedge profile that tapers from .71 inches to .24 (18 to 6mm). With a starting price of $1,000, it sports an aluminum lid and carbon fiber chassis -- a material we wish more Ultrabook makers would in
