Yes I have copies of the photos in iPhoto, and the videos in iMovie. I just don't want to loose the ability to use the gallery. They tell me I can use it until June of '12. I like it because everybody in the family no matter where they live can see it. Why they got rid of it I'll never know. And so far I haven't found a substitute.As far as I'm aware it merges. iCloud should also prompt you if you're going to lose any data. Are you able to back your MobileMe gallery up?