I have been carefully listening to the feedback on iCloud in the last few days, and I have to say it is underwhelming. I keep hearing people bitching about it: it is not much different than the last time they launched MobileMe.
Of all the comments, one stood out.
If you take a picture on your iPhone, it shows up automagically in Photo Stream and it is synced right away to your other devices. In most cases, that means an iPad sitting on the couch. Cool.
One little feature Apple forgot to add: delete.
Yep, if you take a picture on your iPhone, it gets automatically synced to your iPad. And you cannot delete it from Photo Stream. Ever.
Now, let me imagine an unlikely scenario (also known as a use-case): you are out drinking, you drink too much, you snap a picture you should not take. You wake up the next morning with a hangover. You remember you did something the night before (not sure what, though...), you check your pictures for confirmation and there it is, the picture you do not want anyone to see... You delete it and go on with your life. You are allowed a crazy night once in a while, right? Nobody will found out, anyway.
You get home the next night, your daughter is playing Cut the Rope on your iPad (remember, it is a shared device in any household...), she opens up Photo Stream, sees your picture and hands it over to your spouse with a "mom, look at this picture of daddy!!"...
Ooppps. Didn't you delete it? Yes, you did. But only from your iPhone. You cannot delete it from Photo Stream. It will be there to haunt you on the friend's couch you are sleeping on tonight.
If you want to use iCloud, make sure you are sober.