I'd be curious as what people thought about this. From what I've read, Android's market share is still very low. However, I suppose that means there are less games/competition.
I'm not sure the Android market is any less saturated. The rough numbers I found show fewer apps per device and a higher attach rate for iPod / iTouch:
http://seekingalpha.com/article/132665-mobile-ad-market-shar...