The Droid from Verizon has actually outsold the original iPhone in their respective first 74 days of launching.
The iPhone sold its first million units at the 74 day point and according to Flurry in that same time span, the Droid (aka Motorola Sholes), sold just over a million by 50,000 units.
This is a comparison of just one Android phone to the one iPhone model a year, nevermind combining the over 100 Android phones coming to market this year alone.
The point of this is to start thinking of Android as part of your mobile marketing efforts which means if you are creating applications for the iPhone you can convert that code to Android as well using services such as Appcelerator.
Do you feel Android belongs in your marketing efforts?