The DS-5 Community Edition kit promises up to 4 times faster application performance than Java code, and differs from Google's own SDK and NDK in that it is optimized for energy efficiency.
The kit lets you see processor-specific information, and includes its own graphics debugger. DS-5 CE is a plugin for Eclipse, and integrates with the Android SDK and NDK for those of you who into developing. Below is a video to help with the installation.
source: ARM via SlashGear