AOl calendar will sync with Outlook and/or Palm Desktop. Go to keyword SYNC on AOL.
I used it for a while on the Palm. Eh...worked of. But I think that it will work just fine with outlook. Acording to AOL.
Woaaaa....actually. Go here. I just found this.
http://aolsync.aol.com/index.adp?page=blackberry
Some sort of Blackberry - Aol sync thing.
(might not work with the 8700 yet though)