Just saw this posting on WindowsForDevices.com for the the Gecko EduBook that will be available in July for approximately $200. The modularity of the device is quite interesting, since the CPU and RAM are on a replaceable allowing the CPU to be reused or upgraded. It mentions it can run between 4-6hours (depending on battery type), one must assume that drops a bit once a user adds an optional wireless or wifi card.
NorhTec announced a netbook that operates on eight AA batteries, has an internal power supply, and runs Windows XP on a 1GHz SoC (system on chip). The "Gecko EduBook" has an 8.9-inch display, has an easily reconfigurable modular design, and will cost under $200, says NorhTec.
(Click here for a larger view of NorhTec's Gecko EduBook)
With its 8.9-inch, 1024 x 600 keyboard, NorhTec's Gecko EduBook looks like any number of netbooks based on Intel Atom N270 or N280 processors. But, unlike any netbook we've encountered previously, the EduBook is claimed to be capable of running for four hours on eight, off-the-shelf NiMH (nickel metal hydride) AA batteries. In addition, the device has an internal power supply, capable of recharging the system via a simple, easily replaced AC line cord, according to the company.