копаюсь тут в интернетах. Нашёл 2 проекта:
1) старый, и не совсем планшет - OSWALD Hand-held Computer
The Computer Science Platform For Learning (CSPFL) is a student-developed Ultra-Mobile PC (UMPC) called the Oregon State Wireless Active Learning Device (OSWALD)
читать тут: http://beaversource.oregonstate.edu/projects/cspflSpecifications and Features ¶
* Texas Instruments OMAP3530 applications processor
o ~500MHz ARM Cortex™-A8 Core
o NEON™ SIMD Coprocessor
o ~430MHz TMS320C64x+™ DSP Core
o SGX530 2D/3D graphics processor
* 128 Mbyte DDR-SDRAM (266 MHz)
* 256 Mbyte NAND flash memory
* 3.5" QVGA (320:240) 24bit Color LCD
* Resistive touchscreen
* DVI out at HD resolution (1024:768)
* Texas Instruments TLV320AIC33 stereo audio codec
o 24bit resolution
o 96 kHz sampling rate
o 3D/Bass/Treble/EQ/De-emphasis Effects
* IEEE 802.15.4 wireless with IP over 802.15.4 support
* Touchpad
* 3 axis accelerometer
* 5-way rocker switch (up, down, left, right, and center)
* 6 general purpose buttons
* A Speaker
* Microphone
* Built-in 1300mAh Polymer Li-ion battery
Connectors & Ports ¶
Main article:Connectors
* 3.5mm stereo headphone port
* HDMI (not fully complaint, just as a small DVI port)
* Secure Digital card slot
o SDIO and SDHC compatible
* 2 USB full speed host ports (USB-A)
* Power jack
2) на второй денежку вроде только собирают (upd - не собрали). И делают его не просто так, а как контроллер для GNU'сной же HD-видеокамеры Apertus (от надеюсь известной вам фирмы Elphel)
Aspectus is an open source, open hardware tablet computer running off of a customized version of the linux operating system. Some of its key features:
• Cortex A8 processor
• 512MB of ram
• up to 32GB of storage (flash based super fast storage!)
• 10.1" hi-res touch screen
• highly customizable linux operating system
• open hardware configuration
• 2GB of free online storage space
• Possible Internal 3G/ GSM internet
