Unless whsbuss knows something I don't (which is entirely possible because he's been testing different functions of BIS 2.0 ever since it came out -- I think he knows more about it than RIM does
), you're correct. BES is found under the existing mail icon that has always been on your device; it doesn't get its own icon. You have to share this icon with text messages, voice mail notifications, and (if you have the feature turned on) phone logs. Each BIS account gets its own icon where on messages that are in that account show up.