Settings up the Android compiling tools is pretty simple. I've made instructions how to set them up for another engine, and I think it should work quite similar for LE3. It's really just about following the instructions and not take any shortcuts. Install few SDKs or Zip files into certain locations, set a few system env vars like like JAVA_HOME, ANT_HOME to point to the their directories, and that's it. With a single command like ant you can just compile your C++ code into a Android .apk file, no need for Eclipse ****.