A good match
Blackberry and Alicia Keys.
Both are names I know. Though the only AK song I could strain to think of (maybe blokes aren't her audience?) was Black Velvet - though it turns out that was done by Alanna Myles, not AK.
So, like Blackberry, the name is familar but the product remains a mystery. Possibly due to better marketing than content.
I wonder whether RIM will approach Ozzy as a replacement?