Using AU midi plugins and AU instrument plugins at the same time
"It's not a bug, it's a feature!"
Definitely a bug though. But you can jam and tweak instrument params at the same time, without external hardware!
Before trying this, make sure you:
1. Load a AU instrument.
2. Tap "show nav bar" in the AU view
Here's how it looks like:
Now if only we had floating windows a la AUM...