I just switched from a Palm Smartphone to the BB Curve (8330).
I'm very used to the Treo/Centro txt interface - it organizes the messages into a kind of "chat" so that all of the incoming/outgoing txts to/from the same person are organized in one place, rather than every incoming/outgoing text, alert, email, etc. from everything you've done and everyone you've spoken to in one big list.
Is there an add-on ap that I can buy that will keep these messages better organized?