Dreams of a blackberry symbolize forbidden fruit and/or passion that you cannot express in the light of day. Dreams of a phone/organizer/address book represents that you are realizing the enormous power you have in the palm of your hand.
See Also: Fruit, World Wide Web.
[1]Thanks to its wild character and peculiar flavor, the blackberry is a symbol of seduction. In this manner, it could give us happiness, but could also occasionally bring us hardships.
[2]Connected to nature. All Berries have a sexual connotation (clitoris).
Folklore: Bad omen because of the dark color.
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