You can also take notes on a call by pressing Menu>Notes. Those notes will stay with the associated contact.
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I tried this during a call yesterday but then after the call (and even after hitting "save") I cannot find the notes? I went into that contact but nowhere to be found? What am I missing BK?
In the Call Logs, for the contact, press Menu>View>Call Notes and your Call Notes History should be displayed.
I apologize for not answering sooner, got your PM on the question and came back to post the answer after I woke up. The BB101 doesn't take OS 6 into account, and it is slightly different.
Posted from my CrackBerry at wapforums.crackberry.com