I switched to the S3 a few weeks ago. The thing I missed most from iPhone was the integration with other Apple devices. I found this on CNET. Now I'm one step closer to not missing the iPhone.
http://howto.cnet.com/8301-11310_39...-your-android-device-to-iclouds-photo-stream/
http://howto.cnet.com/8301-11310_39...-your-android-device-to-iclouds-photo-stream/