I disagree with the ip attorney. RIM doesn't stand a chance and needs to back off.
Blackjack is a card game or a weapon. Blackberry is a fruit.
What's next? RIM going to patent any device that starts with the word BLACK*...

There is no similarity.
And if anyone confuese the word BLACKBERRY with BLACKJACK then they must have been living in a cave for the past several years. BLACKBERRY is such a well known term...