Apple had to reinvent much of its laptop design for the tiny MacBook. Its keyboard, which covers the entire width of the machine, is 40 percent thinner than the last MacBook Air, but its key caps are 17 percent larger. Its new "Force Touch" trackpad is no longer clickable, but it's pressure sensitive, which opens up entirely new ways of interacting with your screen. You'll be able to press hard on an address in Mail or Safari to get that location on a map, for example, or press down to preview files in Finder. The new MacBook is also fanless, thanks to the Core M's power-saving technology, and its specially designed battery should last for around nine hours of web browsing or 10 hours of video playback.

And yes, those rumors of Apple doing away with typical ports are true. Aside from a headphone jack, the new MacBook features a next-generation USB-C port, which handles charging and typical USB connectivity. (It's so thin a standard USB port couldn't fit!) The new ports will, of course, require new USB cables, but the faster 10 Gbps speeds should make the change worth it. Apple also unveiled two $79 dongles today that will add USB 3 and HDMI/VGA ports to the MacBook.