Thanks for the nice tutorial. Just one little remark: I'm developing on Windows and first I couldn't establish a connection between my mobile device and Unity on Windows. Apparently the main difference to Mac is the need of the Google USB driver (http://developer.android.com/sdk/win-usb.html) and drivers for your mobile device. I followed those steps and then it worked (http://developer.android.com/tools/extras/oem-usb.html). It took me some time to figure that out so maybe you can add it to the video somehow so others won't waste time on this issue.
