This is really just a long over due update. I was reading on Hack a Day that a guy used a Arduino and 2 shift registers to dump the data of Gameboy game cartridges. While it is cool he was able to get it work, it just shows how much I hate using the Arduino for things when you can just get the right chip that you need. Here are some pictures of mine using a ATMEGA16 and a FTDI cable. I wrote the application in Java and it is able to read the header for the bank size, then dump all banks into one file.