An e-mail asking for credit card information is being sent to MobileMe and other Mac users purporting to want the info so the user can "sign up for iCloud," but it is a hoax. The iCloud service, set to begin sometime in the fall, has not rolled out yet -- and is a free offering which MobileMe members will automatically be enrolled in. The e-mail, supposedly sent from "The Apple store Team," (sic) goes on to warn MobileMe users that their subscription will be extended and invites users to "sign up" for iCloud.