With CES 2010 just underway, there’s a veritable mountain of eReaders being unleashed to dethrone Amazon’s Kindle and Barnes & Noble’s Nook. If you can’t make it to CES, just sit back and let MacLife.com be your guide through the thick forest of what’s been announced so far!

Adam
Notion Ink • $300 • Available: June
More of an Android-based “smartpad” device than a straight-up e-reader, Notion Ink’s Adam is running a new Tegra chipset with a Pixel Q display, but promises 40 hours with regular use and nearly 400 hours without the backlight. Also on board is a capacitive touchscreen and rumors of a 3G connection, possibly by way of AT&T’s network.

E6 and E10
Samsung • $399 / $699 • Available: Early 2010
Not one to be left out of the eReader party, Samsung announced a pair of devices this week. The E6 features a 6-inch display with a $399 price tag, while the 10-inch E10 will set you back a whopping $699. Both models have touchscreen (including on-screen handwriting capabilities), Google as a content partner, a soft QWERTY keyboard and Bluetooth 2.0 as well as 802.11 b/g Wi-Fi. Sorry, no 3G to be found on these fellas!

enTourage Edge
enTourage Systems • $490 • Available: February
Sporting the world’s first “dualbook,” the Entourage Edge is finally official at CES 2010 after being leaked last month. It’s definitely going its own way in the looks department compared to Amazon Kindle or B&N’s Nook, featuring dual screens: The left side is a 9.7-inch black & white ePaper display for reading books in PDF or ePub format, while the right side is a 10.1-inch LCD screen for easy web surfing, e-mail, instant messaging or even video watching. You can even pull up book pages on the color LCD side, which more closely emulates the experience of an open book.

FLEPia
Fujitsu • $1,000 (approx.) • Available: Unknown
Available in Japan since May, the FLEPia color eReader isn’t exactly a new kid on the block. The company is also being tight-lipped about if and when it might hit American shores, so interested parties might have to add the cost of a flight to Tokyo onto the purchase. This one bucks the current trend by running Windows CE (?!) and featuring an 8-inch resistive touchscreen, but makes up for those limitations with Wi-Fi, Bluetooth and a respectable 40 hours of continuous use.

Ocean and Tidal
Copia • $199-299 • Available: April (online), June (retail)
Another overachiever on the eReader scene, Copia has no less than six different models spanning two different lines unveiled at CES this week. The Tidal features a hardware keyboard underneath its 6-inch 600x800 display with 2GB internal storage, or you can get the Tidal Touch with a 9-inch 768x1024 display, earphone/mic jack, 4GB internal storage (upgradeable to microSD) or even a 3G version. At the higher end of the spectrum is the Ocean, with either a 6-inch or 9-inch capacitive touchscreen display, 802.11 b/g Wi-Fi, tilt sensors, 4GB internal storage (expandable via microSD) and optional 3G connectivity.

QUE proReader
Plastic Logic • $649 ($799 with 3G) • Available: Mid-April
Long rumored to have an eReader in the works, Plastic Logic made it official only today at their CES press event. The QUE proReader is aimed more at business professionals, taking on e-mail, calendar and other non-document tasks (including Outlook support). It’s more versatile than most eBook readers since it can also view & annotate PowerPoint, Word, Excel and PDF documents. It’s sporting Barnes & Noble’s e-book store and a 4GB model starts at a wince-inducing $649, while an 8GB version packing AT&T 3G will break your bank at $799.

RCA Lexi
Audiovox • $229.99 • Available: May
As odd as it is to see an RCA-branded eReader, Audiovox seems to be going for the lower end of the spectrum here, with a 6-inch, 800x600 16-level grayscale display, 2GB of storage and a battery life that equates to roughly 7,000 page turns. On the plus side, it ships with Barnes & Noble’s Desktop Reader for all of your content purchasing needs, as well as Adobe Reader Mobile to access PDF and ePub formats. And strangely, they don’t seem to want to show you what the device actually looks like...

Skiff Reader
Skiff • Price TBA • Available: 2010
If the Amazon Kindle or its DX big brother is too small for you, the Skiff Reader might be the ticket. At only 1/4-inch thick, the device packs a wallop with a 1600x1200 11.5-inch touchscreen (that’s finger or stylus), perfect for the traditional size of newspapers & magazines, for instance. 4GB of storage is included -- of which 3GB is actually available for content -- but the SD card expansion gives you plenty more storage as needed, which includes music since the Skiff sports a 3.5mm headphone jack. Sprint will be providing 3G data for this one, but you also have the option of side-loading over a mini-USB jack or even Wi-Fi. It’s hitting Sprint Stores sometime this year.

Story
iRiver • Price TBA • Available: Late January
One of the earlier eReaders to make the scene at CES this year, the iRiver Story starts shipping later this month, with an updated Wi-Fi version coming in early Q2. Story is a mere 0.36-inch thick with a 6-inch e-ink display, integrated MP3 player, 2GB internal storage, SD expansion slot, USB 2.0 connectivity and a battery rated for 9,000 page turns. No word on what this one will cost, other than the company’s claims that it will be “competitively priced.”

WISEreader
Hanvon • Price TBA • Available: 2010
One way to make your eReader stand out at a crowded CES event is to release five different models at once, as Hanvon has just done. The WISEreader line is available in 5-, 6-, 8- and 9.7-inch display sizes (as if life didn’t have enough choices!) and they all pack “electromagnetic touch tablet technology” which allows users to make annotations directly on the eBook page. You’ll also have Wi-Fi and EDGE/GSM to download books on the go. Now you just have to figure which version to buy!

Anybody recall that infamous quote from Apple CEO Steve Jobs about how there was no market for eBooks because “nobody reads anymore”? I guess these companies didn’t get that memo…