Since Chrome for Android does only run on Android 4.0+ and its market share was at 7% in the beginning of June [1] and Android's market share is at roughly 50% [2] compared to Apples 30% we get the very weird situation that there are in total more iPhones capable of running Chrome than there are Android Phones capable of running Chrome.
To further illustrate it: The current US Smartphone Market is about 106 million devices strong[2]. That means 31,8 million iPhones and 54,06 million Android devices. The 7% that run 4.0+ are about 3,8 mio compared to the 28,62 mio iPhones which are said to be updated to atleast iOS 4 [3].
As much as i love being an Android Developer, that really is a very sad state of affairs for the Android Ecosystem.
[1]: http://arstechnica.com/gadgets/2012/06/android-market-share-stalls-version-4-0-sees-a-7-percent-install-base/
[2]: http://www.comscore.com/Press_Events/Press_Releases/2012/5/comScore_Reports_March_2012_U.S._Mobile_Subscriber_Market_Share
[3]: http://pxldot.com/post/18754186750/ios-ebb-and-flow