Disable iOS 4 services. Optimize your iPhone, iPod, iPad and save memory.
I know iOS is a super fast and optimized operating system but still there are some services that start but are unuseful for us and consume memory that can.
Java on iOS 4 (iPhone)
Recently I had done some research about Java VM running on iPhone devises. At the moment Apple does not support java application and from what Steve Jobs said, there.
Compile C applications with gcc on iOS 4 (iPhone)
I search a lot on internet how to do this, and I found some info from Anastas Stoyanovsky. Most people posted that if you install libgcc on iOS 4.