Android 2.3 is available for the Raspberry Pi -- here's how to download and install it on the micro-computer right now.

If you want to install the Google Apps including the Android Market and Gmail apps, scroll down to the bottom of this article for details on how to add those features.

Original (outdated) guide: Here’s how you can install CyanogenMod or other custom Android ROMs on the HP TouchPad.

How to Install a Kernel for Android. The Android's kernel controls many aspects of the operating system, so when you replace the operating system you replace the code that keeps Android running.