I have been wondering the same thing since there is no changelog.

One small thing I notice is that when I run the camera app, there is now a little bar across the top that says "Using memory card".

I do see that I still get the notification that 3.0.0.8 is available and I can't remove it.

When I download files, I get a notification that the files have downloaded and I can't clear those. However, if I get an email and long press the email, the "x" appears for the email to remove that notification and it appears for the downloaded file. I can remove the downloaded file notifications then. If I remove the last email notification, the "x"s disappear from in front of the downloaded files and I have to wait for another "deleteable" notification to appear.