Have you ever wish to run Google Android on jailbroken iPhone 2G/3G, -- you can install the latest version of Froyo, Android 2.2.1, on a jailbroken iPhone 2 or 3G, and you can do it all without a computer.
FunkySpaceMonkey has put together a step-by-step guide to getting Android on your iPhone with Bootlace 2.1, you can now install Android 2.2.1 Froyo on your jailbroken iPhone without needing to connect it to any PC or Mac! In short: it's as simple as installing Bootlace 2.1 from Cydia, running it, and firing up iDroid. The rest is done for you.
We'll soon post complete guide here. Meanwhile, refer the source link below to get the job done.
More Info: Full Guide