This is good, and well overdue. Trillian doesn't mention this at all. There's nothing worse than people who don't realise that this shit is all being logged somewhere, especially if they're people which you talk to.
Messenger 8 is weird so far. It's very different from Trillian (well duh), but it looks like it has some nice features. The fact that the "Skin" for it at the moment is huge and bulky doesn't sit well with me. It takes up too much monitor real estate for anyone who's used to using a very compact Trillian skin. This could change once...