Ever since I read this, I had been curious about it. I sort of imagined a small cartoon-like creature but its not. It happened to me today when I was installing Volvo SCT apps on the Smart. In my case, I think it had to with the limited internal storage capacity. If you are installing lots of applications, the default destination is on the internal storage. You might want to start moving them off to the SD Card.
Apparently, the path to the image is /etc/datavolm.bmp and here are the three different versions.
The thing is I'm only installing a few apps from the Asteroid Market (less than 5). I don't want to give up on this headunit since it's hilarious to tell people my radio runs pure Android and then I get this WTF look; plus it has every connection and feature I was looking for in a headunit.