I have an Incredible. I use basic IMAP mail hosted on a server I pay for. I tried K9, and it fails with SSL. See here. I tried redownloading the certificate by reentering the information. This is a temporary fix at best, as it will sporadically on one of my email accounts stop receiving or sending mail, which I verify by checking the k9 errors folder. Then there's HTC mail. You have to jump through hoops to get SSL on SMTP servers, and there's no sending mail over wifi. I have yet to get SSL certificates on outgoing mail to work with HTC mail, which is a requirement. I don't use gmail for business, but I tried the gmail app and noticed: no select, or copy, on the HTC Incredible gmail app. So if I have something like, say, a tracking number, I am screwed. I actually use the web browser to check gmail.com rather than use the app on this phone. At least in K-9, if I hit reply, I can scroll down to body text and select what I need to. Even if the selection isn't done as elegantly as it is in the browser, or in the HTC mail app, it works. I want an email app that just works. Push/IMAP idle would be nice, but I'd settle for something that doesn't have a pile of SSL bugs and wi-fi issues.