You do not need to install the Android SDK. However, you will need to install the x86 (32-bit) version of the Java 6 Development Kit if you’re using Windows. Corona does not support JDK7. See Java Development Kit Setup for details.
The Android build process generates a standard .apk file. You can build and test apps on Android devices without creating a Google developer account, but you will need an account if you wish to publish to the Google Play marketplace. The current price of the program is $25, mandated and managed by Google.
We only support Android devices that run Android 2.2 or higher with an ARMv7 processor. This can create some confusion because ARM processors are identified by both a family and an architecture. Family names do not have a “v” in them. For instance, the ARM7 processor is actually a ARMv3 architecture, and ARM11 is a ARMv6 architecture. See this guide to help identify the various processors.