Toshiba is promising to unveil the world’s thinnest and lightest tablet at the Consumer Electronics Show (CES), which starts next week in Las Vegas.

The new tablet is reported to weigh in at 558g (just over a pound), which is lighter than the iPad 2. It’s 7.7 mm thin (slightly less than a third of an inch). That’s as thin as many World-thinnest-tablet-from-Toshibaof the ‘super thin’ smartphones, in fact, it’s just a touch over the thickness of Motorola’s new Droid RAZR.

Reportedly the name of Toshiba’s super thin tablet will be the Toshiba Excite. It’s to have a 10.1 inch 1280 x 800 touchscreen, and is powered by a 1.2GHz dual-core OMAP 4430 processor. There will be 1GB of memory and up to 32 GB of storage, plus ports for HDMI, microSD, and USB 2.0. It also includes two cameras, a 5mp and a 2mp. It will be running Android 3.2 (Honeycomb), not Ice Cream Sandwich, unfortunately. The tablet also has a small Google logo in the corner.

No word on pricing, but it’s bound to not be one of the cheap tablets that have been all the rage lately. But we will know more and report it here next week.

Reports are also coming in that Toshiba will also introduce a 7 inch tablet at the show, and there are rumors of a Toshiba waterproof tablet in the pipeline. AT&T is also set to introduce a waterproof or water-resistant tablet from Pantech next week.

Lot’s going on, as expected, prior to CES! More as details come in.