I haven't had much opportunity to work on this over the weekend, although I did end up replacing the touchscreen glass that fits over the LCD on an android tablet that had cracked and that was very successful. I finally did some work on it today. I'm starting on working on the communications between the Arduino and the android. I set up the code to set up the serial connection and perform a bulk transfer. It's not quite working yet, but when I was trying to debug it by having the program print the status to a text field, it kept crashing until I remembered that you aren't supposed to access the UI from a separate thread. So the next step will be coming up with a way to have the UI automatically put the value of a variable in to the text field so I can indirectly write to it that way.