I compiled my I2C OLED library on my beaglebone black and with little effort, I was able to get it working. My BBB is running Ubuntu instead of Angstrom (instructions to get that flashed are in a previous post). This code was the same one running on the raspberry pi in my prior posts.
Steps taken were:
Download code from github
run the compiled executable
The I2C class was defaulted to use the address of the OLED so I didn't need to change anything. :)
Here are some images of displaying a BMP on the OLED.