[A_S]

Is it possble to have a conversation while in offline mode or with someone else who is currently in offline mode

[asnyder]

I don't think this is possible.

[myt_mouse]

Is it possble to have a conversation while in offline mode or with someone else who is currently in offline mode

By offline mode I am assuming you mean "appear offline" mode

Well if so I know you can have a conversation with somebody while you are in offline mode with someone else who is not in offline mode on the PC version but I haven't tried it on the BB...