Well, I have to say that a lot of work goes into explicitly taking advantage of NEON, and even Google states in their docs that you must check at runtime whethe

Well, I have to say that a lot of work goes into explicitly taking advantage of NEON, and even Google states in their docs that you must check at runtime whether NEON is supported (and not just ARMv7). So if you're using NEON, you're already spending effort, and should be aware that you will need to support different architectures (even if only ARM variants). All things considered, the NDK offers a lot of cross-platform interoperability for very little effort. Recompiling really isn't the issue, unless you live in 1995 and you're still hoping Java will save the world. Also, many apps don't need any native libraries at all. AMD will be able to support a large portion of Android apps without doing any binary translation, and can use the same market filtering mechanism that Google uses to avoid apps that would require an ARM architecture.