Ultrabooks were the big story at this year's Consumer Electronics Show. Intel's trademarked ultrabook took over CES in a big way this year with new devices being unveiled by Acer, Toshiba, and Samsung to name a few. Ultrabooks are ultraportable, slim and stylish notebooks that Intel hopes will turn consumers back to PCs.

"It really kind of fits into that space between a laptop and a tablet," says Bryan Deaner of Intel. "It's a really sleek form design, so less than an inch, pretty light -- about a pound and a half or two pounds -- and they're really responsive, so where a lot of traditional laptops take maybe 30 seconds when you boot them up to get started, these are guaranteed to start up in less than seven seconds."

Ultrabooks are designed to be ultra mobile but at the same time have the same features as ordinary laptops. Ultrabooks have fully functioning keyboards but some ultrabooks showcased at CES blur the line between a laptop and a tablet by disconnecting from their keyboards to transform into a tablet.

The new ultrabooks revealed at CES highlight the versatility of this new category of laptops. There are new models that can turn into tablets, some that are designed for business types and others sporting the newest Intel processors. There are ultrabooks from every major electronics manufacturer and even entries from newcomers.

This is truly the year of the ultrabook. Here are some of the best ultrabooks at this year's CES.

HP Envy 14 Spectre

HP's new Envy 14 Spectre is an eye-catching device that boasts a glass-based chassis that is scratch-resistant but weighs less than four pounds. The Envy 14 Spectre has a 14-inch display, multi-touch enable touchpad, Beats Audio and a HP Radiance backlit keyboard. It has a built-in NFC chip, full versions of Adobe Photoshop Elements, Adobe Premiere Elements and 2 years of Norton Security. The Spectre runs on a choice of Intel Core i5 or i7 processor with either 4Gb or 8Gb of RAM and 128Gb or 256Gb solid state storage. The HP Envy 14 Spectre will set shoppers back for $1,400. HP will release the Envy on Feb. 8, but the company is taking reservations on the HP Web site.

Dell XPS 13

Dell's entry to the ultrabook line is the XPS 13. Dell's debut ultrabook device has a 13.3 inch display with durable Gorilla Glass, Intel Core i5 or i7 processor, 4Gb of RAM, Intel HD 3000 integrated graphics and a choice of 128 or 256 Gb solid state drive. Dell promises the XPS 13 will have a battery life that lasts eight hours and 58 minutes. Dell is selling the XPS 13 for $999 at the end of February but early adopters could reserve it at Dell's Web site.

Samsung Series 9

Samsung's Series 9 ultraportables is actually a year-old and predated Intel's ultrabook push. This year Samsung redesigned its Series 9 laptop with a thinner unit available in 13 or 15 inches. The new Series 9 has a 1600x900 display, a choice between a Core i5 processor or Core i7, 4Gb of RAM and 128Gb of solid-state drive. It will have full-sized USB 2.0 and 3.0 ports, headphone and microphone jack, HDMI, Ethernet and VGA connectors, and an SD card slot. The 13 inch standard model costs $1,299 while the Core i7 model costs $1,495

Acer Aspire S5

Dubbed the world's thinnest ultrabook, Acer's Aspire S5 weighs just under 3 pounds and measures only 15mm at its thickest point. The Aspire S5 is also the first ultrabook to ship with the Thunderbolt interface seen on Apple's laptops and desktops. The Aspire will also have USB 3.0 and HDMI ports, a solid state drive and the latest Intel processor. Acer is including its Green Instant On technology for faster boot-up times. Acer hasn't released any price yet but expect the Aspire S5 to hit the market in the first quarter of this year.

Lenovo IdeaPad Yoga

Lenovo's IdeaPad Yoga is a stylish ultrabook that is actually a lot more than that. Flip it over and the IdeaPad becomes a tablet with a capacitive touchscreen. Not only is it the first touchscreen-enabled ultrabook it also has Intel's Ivy Bridge processors and Microsoft's Windows 8 operating system. The IdeaPad Yoga has a thin 0.67 inch chassis that weighs 3.1 pounds, a 256Gb solid state drive and 8Gb of RAM. With its 360-degree double-hinge design the IdeaPad Yoga turns into a tablet or even a standing tablet. It has a soft-touch rubberized exterior for a secure grip. The Lenovo IdeaPad Yoga is a giant leap forward for ultrabook design. Lenovo is shipping the IdeaPad Yoga in the second half of 2012 for $1,199.