FYI
http://www.alwaysinnovating.com/touchbook/
This is essentially a tablet with a detachable keyboard and the keyboard includes an extended battery.
Specs
* 9.4" x 7" x 1.4" for 2 lbs (with keyboard)
* ARM Texas Instruments OMAP3 chip
* 1024x600 8.9'' screen
* Storage: 8GB micro SD card
* Wifi 802.11b/g/n and Bluetooth
* 3-dimensional accelerometer
* Speakers, micro and headphone
* 6 USB 2.0 (3 internal, 2 external, 1 mini)
* 10h to 15 hours of battery life (tablet alone 3-5hrs)
Price
$300 Tablet + $100 for Keyboard/Extended Battery
I decided to get this instead of the Hanlin v3. The only drawback is the battery life sucks.