Lotus Notes Dealing with Lotus Notes makes me appreciate Microsoft products. No, really. A few examples: deleting emails (in Notes 5) requires marking them "to delete" and THEN refreshing your display to get rid of them. I'm not sure where they end up, there doesn't seem to be a normal trash, but deleting emails is one of the critical features that Notes doesn't support.

Replying to emails is another. If you want to quote some text, but not others, you're out of luck--it's all or nothing. It's shocking how something that offers such sophisticated functionality on some levels fails to get basic things right. By contrast I looked at the mail.app client for Jaguar (OS 10.2 beta)--auto threading, multiple accounts, built in presence, built in chat--wonderful stuff.