I use HTC Mail for Exchange and I'm VERY happy with it. I love it. The unread view is how I live and this is the only smartphone app which has it, period!! HOWEVER, it doesn't support IMAP/POP3! So I'm stuck using something like MailDroid or K-9. I'm trying to understand the differences. K-9 seems to do "polling" which from what I can tell is a periodic check for new mail. MailDroid however has no such functionality and I'm not quite sure how it polls or how often (or how to control it). I think I saw a MailDroid controller app but you have to pay for it! *grumble* So can anyone who has used both shed some light on this? I've got both set up right now, and both seem to work. I will get my own first-hand conclusions in a day or two, but for now I'm wondering what insight I can get from folks who've been using these apps for far longer than I have. Thanks in advance!!