Iphone3gs 8gb 5.1.1 software wanting to swap for galaxy s2 cash your way *

I have a iPhone 3GS 8gb has Afew light scratches on the back and a tiny crack under the home button common fault but the screen is mint as I have kept screen protector on wanting to swap for a galaxy s2 must be mint condition I will put cash ur way so contact me with ur details thanks