I didn't care for all the current options so I sort of hacked together my own from a x86 tablet PC.
I just wanted something I could program on easily. Full sized usb ports are a plus with video out.
1 GB RAM, 1 GHz processor, Debian GNU/Linux
I did this because my primary concerns for a tablet were:
0. Full root account and complete system control.
1. C/C++ compiler, Common Lisp, and Python support with established libraries like SFML, SDL, Pygame etc.
2. True multi user support.
3. GNU tool chain and userland.
4. Wacom stylus pen and xvkbd for virtual stylus keyboard.
5. Free and open source software.
Got it used for $80.
The only problem with it is the drive is an IDE drive and it takes 333 laptop RAM chips which are getting pretty rare.
