It is iOS 5 update time! I've reviewed my games and downloaded the latest Xcode tools.
Emerald Run has some issues on iOS 5. Fortunately, they have been resolved and I submitted an update today. The case that broke is when shadows are turned on. There was a problem with the fragment shader related to shadows in iOS 5. Also, I ran the game with the OpenGL ES analysis tools again which showed some new issues -- its Xcode 4.2 / Instruments which appears to catch more problems.
Ant Planet, Astroidica and Sea Assault appear to run well on iOS 5. I synced with the new iTunes beta on a test iPod with iOS 5.
I'm glad the new tools went gold master. I'm interested in ARC and story boards. -- its been a long wait. I like to wait until the GM release, then quickly get things in order. If its like the iOS 4 release, there will be a small time window to get things updated. Seems like OpenGL ES 2 runs faster too.