This idea may be a little out there, but I was thinking of this the other day and figured I would post it and see how you feel.
The PDA system is already set up, so my idea would be to add a email type system where every gm has a email. For example the pacers gm would be pacersgm@ea.com and the lakers gm would be lakersgm@ea.com.
Instead of having to type in a subject, maybe have a drop down menu. The options could be:
-trade inquiry
-general discussion
-serious discussion
-make a counter offer
-etc.
Maybe you could send a email asking about a player and that teams GM would tell you what you had that he wanted, maybe you could have light talk just to see whats going on in the market, or maybe you could send a email with a serious offer and see if the opposing GM would accept this trade.
Just a thought...............