One alternative use for this is to use it as a "simulator" for developing Android applications.
The emulator that is included in Android SDK really emulates ARM code (it's actually running QEMU with ARM v5 code). The problem with this is that it's rather slow, even on high end computers. Anything that runs opengl is extremely slow and not usable.
The Android X86 project makes it possible to run Android in eg VirtualBox. You can then test applications in a much better environment. (Well, currently OpenGL still doesn't work, but it's a work in progress.) Since this is actually running the full Android environment, but compiled for X86, it's possible to get pretty close to real Android behavior on the system.
So that's one nice benefit of the system. Otherwise I imagine that it could be useful to run Android on an old netbook which has problems running a full OS. (And to be frank, many netbooks with Atom seems to have this problem. At least mine does.)