Ryan, Hotmail isn't supported on the iPhone's "mail" client, but that can be worked around. My friend at work had the same problem, but you can do this to get all Hotmail forwarded to your iPhone;

First you need to open a google/gmail account. Do this here - https://www.google.com/accounts/NewAccount

Then follow these steps;

1) First open your gmail account, go to setting, then account, then under "send email as" click Add another email address, and then add your hotmail account info.

2) Then log into hotmail and confirm the gmail verification that you added the hotmail account

3) In Hotmail, go to Options, then select "Mobile alerts for new messages". Go through the steps (the verfication code could take upto 10 mins for you to get). Then when you are customizing the mobile service (on Hotmail), select that you don't want to recive text alerts when you recieve an email. click next and back to hotmail when you save it.

4) Then in Hotmail, go to options, and select "Forward mail to another e-mail account". now add your gmail account, and it will let you.

5) Test it out, you should get your hotmail emails forwarded to gmail, thus your iphone

Step 3 is the most important part as without doing this hotmail will just say you cannot forward mail to any other mail address other than .msn etc...

Personally I recommend ditching hotmail and using gmail as your full time email service, and doing the above will allow any mail still sent to your hotmail address to be forwarded to your iPhone using your gmail account. However, should you so wish to not have people use your new gmail address and carry on replying via hotmail, then you can do the following;

http://mail.google.com/support/bin/a...l&answer=22370

Lastly, remember to log into you hotmail accoutn via an internet browser every so often, if you don't use it regulary from your computer that is (ie, if you decided to use gmail full time) just so it stays active. I have no idea what MSN are like now as I haven't used hotmail for years, but my old account was shut down as I never bothered logging back in....