WOW.. This is what I have been talking about for a while. A way to bring project develpment to the touch tablet world. Here is a sample of an Android tablet connected to an Arduino single board computer. It is the heart of any electronic project that envolves embedded processor control.
Shown here hardwired to the tablet only during the programming stage. Once the programming is done, it can be disconnected from the cable and linked to via wifi.
The Arduino features many i/o ports including both analog and digital inputs/outputs that can be used to control any electro-mechanical device. Including MIDI keyboards, servos, robots, etc.