you want imap or pop3 for hotmail? ha! hotmail is terrible, it has no imap or pop3 (so i couldnt get it on my ipod touch)
i opened up a gmail to have hotmail forward all my emails to so i could get it on my ipod....hotmail will only forward to other microsoft accounts...stupid, terrible, no pop3 or imap
moral of the story: switch to gmail...i did, got all my accounts and everything swtiched and i'm happy
gmail has imap so you should be able to get it on your psp like i get it on my ipod...once you (if you) switch, tell me and ican give you the incoming and outgoing mail server info....