I'm looking to setup with iCloud, and I'm concerned with their desire to sync my contacts, calendars, and bookmarks. While I'm fine with the bookmarks, I am legitimately concerned about contacts and calendars since I consider that the domain of Gmail Contacts and Google Calendar, which I've had synced via Gmail Sync for some time now.
Will iCloud sync interfere with Gmail sync? Or does iCloud simply offer me another layer of redundancy?