Earlier today evidence was discovered that the Calendar portions of MobileMe had already begun being ported over to the iCloud domain and rebranded. We did some digging here after the news and discovered that the Find My iPhone service seems to have been ported over as well.
The screenshot above is from the confirmation email that Find My iPhone sends you when you send a message to a lost phone that you’re trying to locate. The email is clearly branded with the iCloud logo.
When you view the origin of the iCloud logo you can see that it is coming from the iCloud domain as well. This indicates that the message originated on the iCloud servers. This would seem to verify that the Find My iPhone service has been ported to iCloud and that it is highly likely that we will see pretty much all of the web services that we use now with MobileMe getting the same treatment.