My first run (on my mother-in-law's 1.5 year-old Samsung) caused a crash, which I later identified as an Android bug which Google had fixed in the later version I was running on the emulator.
So far, fragmentation was far worse than I had anticipated. It's just as bad as Jobs said, and it's by far the worst part of Android. I guess that's what you get when you have some

The most surprising flaw of Android, from a non-developer perspective, is that it still looks… shockingly repugnant. The default views, buttons, the layout, the margins, color choices, borders, shapes, shades – yes pretty much everything – looks like it was unequivocally designed by an ox.
Surprisingly good was the Google Play release cycle. My first only took two hours; I probably spent the double on my first App Store release. To be fair, you feel more obliged on App Store where there's quality all around. Also, when the app crashed (on my mother-in-laws Dumb Phone) I was able to submit the crash log - including call stack - to my Google Play account, which I could pick up and fix whenever. That was pretty neat, I must admit. Plus Android is cheaper. Android-iOS 2-2000.
Here's the app. Here's the sauce.