Data Transfer Tool

I have a need for a service/application that takes data from an iPhone 4 or 5 then moves it to a Android Galaxy S3 or from a Galaxy S3 to an iPhone 5. The data components to move would be: - Address Book/Contacts - Photos and data stored on an SD card **[Ignore this requirement, I was in a hurry]** If possible: SMS messages. The use case: Somebody comes to me with an iPhone and wants to move to a Galaxy S3. They want to have their data moved from one phone to the next. This can be a small app on both devices (temp) that does this in the cloud or a web/java app where you have two USB ports plug the device in and move stuff. Very basic UI.