I have found an Android app that will allow my Android tablet to power my dgt USB board. You can use the app to play against the app’s engine IF your Dgt eBoard is a bluetooth board. The app maker claims that it can also be used with full funcionality on a USB eBoard, but I have not been successful yet in getting it to work. Otherwise, it simply starts the app when the board is plugged into the tablet and powers the board, allowing the recording and storage of moves in the eBoard’s flash memory for later download to your computer via RabbitQueen.
The app can be found here, and it’s free.