(FORTUNE Small Business) – With the new U750P, Sony has made "portable" computing into something more than a euphemism—but just barely. Weighing in at a bit over one pound, three ounces, the U750P is about the size of a 350-page paperback. Stuffed with a 20GB hard drive (enough to hold a collection of Beethoven's works or more than 700,000 PowerPoint slides), Microsoft Office, Wi-Fi, a portable keyboard, and handwriting-recognition software, it can equal in speed and performance any laptop on the road and some desktops back in the office. But the internal screen, at just five inches diagonally, induces wincing eyestrain that hamstrings the U750P's power. In that way, this VAIO is reminiscent of those miniature Bibles printed on grains of rice. They would be amazing—if you could actually read them. Retail price: $2,000. — IAN MOUNT