After I migrate to Exchange/Outlook, can I sync my e-mail with my smartphone or PDA?

Yes. The new location to point your device is: webmail.unt.edu

You will need to set up your device again with your new account information as you did previously.

The new auto-discover feature with Exchange makes it easier as well. When setting up your account, remember the following:
-point to webmail.unt.edu as the mail server location,
-enter your Exchange user ID (your EUID) and password as prompted,
-if asked for your Exchange e-mail address, use: firstname.lastname@unt.edu Not a preferred alias (i.e.: mypreferredname@unt.edu)
-if asked for domain, use: UNT

The auto-discover service will then handle the rest of the Exchange settings; it could take a couple of minutes.