Pro's/cons of either setup via the HTC client? I currently have it set up using IMAP, but then I can't access email via WiFi. Yahoo doesn't support IMAP Idle, so it can't simulate push mail. Therefore you need to set a frequency for it to poll. I was thinking of switching to SMTP so that I could use it at home via wifi. I already have the IMAP poll frequency set to 1 hour, and could do the same with SMTP. Is there a good reason to stick with IMAP rather than SMTP?