What exactly are ultrabooks? Intel believes they are a unique category of computer–devices that are more portable and less power hungry than traditional laptops, but more powerful than netbooks. And, the company is putting $300 million (US) behind an effort to improve Ultrabook technology.

But is there something special about ultrabooks, or are they just the next step in the laptop’s evolution? To help you answer that question, Natasha Lomas, senior reporter for TechRepublic’s sister site Silicon.com, has put together a cheat sheet for ultrabooks.

In her cheat sheet, Natasha explores the differences between ultrabooks and traditional laptops, the difference an operating system makes, the $1,000 price target, and more.

And if you want to see what’s inside an ultrabook, check out my Cracking Open gallery of the Acer Aspire S3.