It’s a funny story about the release of this game. I would have announced it several hours earlier, but I fell into what is apparently a somewhat well-known pitfall when signing the application package for release on the Android store. When signing applications for Android using Unity3D, apparently I must refrain from using JDK 7 and instead use JDK 6. Shame on me for being logical and trying to use the latest version.
Unfortunately, this pitfall meant that I had an uninstallable package posted on the Google Play store for some hours. Luckily, only people that I know had downloaded and noticed, and I was able to get the issue corrected without a huge Kerfluffle. I guess some bumps in the road are to be expected when working with unfamiliar technology.
All’s well that ends well, though, and the current package has been tested by all affected parties, and is deemed working.