I share Michael's iChat irritation. One of the things I love about Fire is that I can drag a log file onto BBEdit and have it open up in the text editor. iChat logs have to open in iChat, presumably so you can see the pretty word balloons. The solution, obviously, would be the ability to open my iChat chat log in BBEdit and read it in plain text glory, or open it in iChat and get it with the balloons. From a UI perspective, I prefer iChat over Fire, since most everyone I know uses AIM. Two friends stubbornly cling to MSN (Hi, Wil!). I have accounts with ICQ, MSN, and Yahoo! Messenger, but with the aforementioned MSN exceptions, everyone I know on the other services also uses AIM, so iChat it is.