I also noticed when trying to drag down the status bar with my finger, it didn't work that well on default density, i had to use my nail,or it would just not come down.
When changing my density to 200 i was able to drag down the status bar using my finger again, so that definitely improved the usability for me (it's awesome you can just change that setting to your needs)

It's a bif confusing though, i'm not that technical when it comes to drivers, but in my experience it's usually the 2D acceleration that works, the 3D that doesn't, but the NITDroid team managed to get it the other way around, hehe (but i'm sure they'll find it out soon)