Not that I am aware of... and certainly not that I'd be interested in trying. If you want an android, buy one. If you want an iPhone, but one of those. But why would you want to screw around like that? #dontgetit
Why do it? iPhone only has one primary button, even if you remapped everything the user experience would be odd at best. I agree with hank, if you want a android device go and get one, there are lot's of great android devices on the market.
Download Dreamboard from cydia.. it comes with the best android theme that i know off, it fully makes your device look like a android. Hope this helped in someway.