A Cius Compatible Intel Architecture (IA) NDK is now available here.
The Intel Architecture NDK has the same basic functionality as the standard Android NDK, and the same process is used for building apps.
A great place to start is with the standard NDK "Getting Started" instructions, available here.
The only special requirement for build apps with the IA NDK is that you need to specify the x86 architecture and a target platform specify to froyo. This can be acomplished by added to additional parameters to the ndk-build command which is used to build ndk based projects. Here is an example.
ndk-build TARGET_ARCH_ABI=x86 TARGET_PLATFORM=android-8
Let us know if you have question.