Why Andriod is better than the other smartphone platforms

Cost to write an app and install it on the device you already bought:

Windows Phone 8: $99/year

• https://dev.windowsphone.com/en-us/join

Apple iThingy: $99/year

• https://developer.apple.com/programs/ios/

Android: $0

• http://developer.android.com/sdk/index.html

If I'm trying to sell the app in your app store, then fine, make me pay the $99/year. But if all I want to do is write a silly little app and put it on my own phone to try development, or calculate my biorhythms, or lottery numbers, or whatever, then don't shaft me $99 for the privilege.