Some time ago I wrote about a method to dual-boot and power on an iPhone use Android and IOS using iPhodroid but the method was a bit complicated for some, so now there is now a much easier way and can be done from the iPhone without connecting to a PC.
To install 2.2.1 Android Froyo on an iPhone you need the following:
- iPhone 2G iOS system with 3.1.2 or 3.1.3.
- iPhone 3G iOS system with 3.1.2, 3.1.3, 4.0, 4.0.1, 4.0.2 or 4.1.
- Have made the Jailbreak to your iPhone (how to do the Jailbreak with Greenpois0n)
- In Cydia source you must add the following:
http://repo.neonkoala.co.uk
- After you install Cydia Bootlace, and then install OpeniBoot that will download and install IDRO is the optimized version of Android for iPhone.