one thing i don't like about adium... with AIM, it's very slow (or non-responsive at all) figuring out who logged out or even when i'm logged out. i can disconnect the ethernet cable on my computer and adium won't realize that i'm no longer online...
gave me quite a headache because i have to use AIM client at work and i get many system messaged claiming i'm logged in at more than one location - it's adium not letting go of my sessions unless i explicitly quit, so it seems...