It's pretty bad, and only getting worse. If you're interested, the following articles explain pretty well why developer support has overwhelmingly been on Apple's side:
The shocking toll of hardware and software fragmentation on Android development
iOS v Android: why Schmidt was wrong and developers still start on Apple
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Current estimates peg the AppStore as having sold about 20x more than the Google Play store. I've read that some developers have actually had to hire additional support staff just to handle the onslaught of emails which came in after deciding to support Android, the majority of which were handset specific complaints. The developers are deciding to put their resources towards a second iOS app, instead of porting their existing app to Android.
One specific dev complained their Android app had 1/4th the revenue as their iOS app, while costing 4x to support. He ended up dropping Android altogether once he realized it was costing him 16x more to bring his apps to market.
I hope more app developers will abandon Android... The future is brighter with iOS