OK, so it's not actually BIAB. Here's the text from the Android market site:

"Band-in-a-Box for Android is a program that works as a client to your existing copy of Band-in-a-Box 2011 for Windows, allowing you to play, generate and transfer your songs to/from the Android phone. Important: You need to also have Band-in-a-Box 2011 for Windows to use this program."

If it was an actual app version of BIAB, I would probably dive in.