Interesting, but can it beat $20 ?
I'm currently working on something similar and the price for a low-end DIY version is ~$10 in materials. I have a prototype that is working; maybe I'll put up a video or something. (The prototype has ~$20 in materials.)
The main reason is to record chess games played OTB. The prototype can store multiple games (about 100 game, assuming 100 plys per game) on the chessboard itself in non-volatile memory and downloaded via USB connection to computer later. I'm thinking for the final product of replacing USB with Bluetooth for phones connection since that allows me to have real-time game broadcast/analysis. BT ucontrollers are actually even cheaper than USB!
DGT made new e-board. 'DGT Smart Board'
Same functionality as previous e-boards, but cheaper cause it is made of plastic, DGT says.
It will on the market end of November.
http://www.digitalgametechnology.com/index.php/products/electronic-boards/smart-board
What do you thick about it? I think previous e-board are too expensive for regular hobby players, and maybe this version is affordable and worth to buy.