I'd love to be able to add the same photo to more than one album. This seems like the sort of thing that's a natural advantage of digital photos over regular ones.

Let's say I was taking pictures of friends at a baseball game, along with a couple of other shots of the surroundings. I want to put the pictures of friends in "friends" album, but I also want to put those same pictures in the overarching "baseball" album, or the album for that particular game. It seems as though you have nested albums, which is nice, but this would be a good usecase to look into.

Also, while I was playing around, I created an album that I wanted to get rid of. I deleted the album and it took all of the pictures in it out of my timeline. I probably should have figured that the albums act more as folders than tags when I discovered that pictures were assigned to a single album, but I can't figure out how to reupload those pictures. Any help?

Congratulations on the launch!