After months of work, the excellent multiple network instant messenging program, Adium, has reached version 1.0b1, and this release is a great one. It sports major improvements to interactions with AIM, ICQ, and .Mac IM networks, iTunes integration, the default look and feel and privacy options. It now requires Mac OS X 10.3.9 and is a universal binary.
Please note that this is still in beta, though I was using it last night without any significant problems presenting themselves.
[Thanks to those who sent us this tip.]