First, I think RIM needs a CMO before they think about tackling any more advertisement campaigns. Once that happens, they need to look at what Apple and Samsung have done (the current leaders).
Apple somehow is the "first" at everything and makes consumers "need" their products. Samsung has recently come out with a campaign that is more memorable than other Android devices and has sparked interest on the internet (i.e., Gizmodo, Engadget post these ads).
If they can somehow combine the way Apple shows the use of their product with Samsung's whimsical factor I think they will have a winner.
Please, for the love of God, do not market the product on prime time television for enterprise users!!!!
I don't think RIM should spend money on commercials until they have a new hardware release. It's not worth it to advertise 10 month old hardware that has been discounted.