I am currently trying out all three of these. Have been trying to find the answers to a few questions I have on the developers sites without any luck. Chatopus seems to be the most stable, but it is boring and ugly. I really like Mundu but it seems to log me out even though I have it set to stay on when exiting and stay on in background mode. I tried IM+ today, really liked that alot but when I would get a text message and go back to IM, the talk thread was gone so if my husband wrote I never got it. Does any one know how to fix it so the IM programs stay on even when you leave the program to do something else and then come back? Also keep the same thread open so when the person replies you can see what they wrote? Or is this just the nature of the beast and deal with it?