I've boycotted Eudora ever since their CEO (or somesuch) publicly claimed that IMAP was the worst thing ever and that people would complain about how slow it is compared to POP and that they would not be implementing IMAP support. (I'm paraphrasing wildly, of course.) This amazing lack of understanding in a public forum (I wish I could find a copy now, but can't) soured me on their products forever.