There is no android for Pre 2 that I'm aware of. The Homebrew Apps, patches, etc are available through a centralized location called Preware.
Application:Preware - WebOS Internals
Of the methods in the Wiki, I favor using WOSQI as that is a severely useful piece of software in it's own right. (webOS Quick Install)
Please consider purchasing the Preware Homebrew Documentation and WOSQI Homebrew Guide. Both are in the App Catalog, only cost $1 each and provide a lot of helpful info.
Installing Preware really will open up a lot more functionality for your device.