We haven't been shy about our love for Dell's XPS 13 ultraportable -- since it debuted, it's been one of the best Windows laptops on the market. But if you also wanted an ultraportable that converts into tablet orientations, like Lenovo's Yoga series, you've had to look beyond the XPS lineup. That all changes today with the launch of the XPS 13 2-in-1, which was leaked yesterday by Dell's very own product site. But now we've got official details about the laptop.