Welcome to Engadget's back to school guide! Today we're talking ultraportables. Head to the back to school hub to see the rest of the product guides as we add them throughout the month. Be sure to keep checking back; in early September, we'll be giving away a ton of gear, including some of the picks in our guides.
Ultrabooks hit the mainstream in 2012; in 2013, they're claiming the high end. Intel's
