I forgot a couple of other 3.0 features. A big one is now you have the ability to sync notes with the Mac’s Mail App. I’m not sure if there is a way to sync them on Windows or not. Another is the voice recorder app syncs your voice memos with iTunes, so you can play them there.
Finally, another big one I just found out is the iPhone finally has LDAP support. I just added the UVU LDAP server and it worked flawlessly searching the campus directory. This will come in handy for work stuff when I do not know someone’s email address. To add an LDAP server just go to settings/Mail, Contacts, Calendars and then tap add account and choose other. It works automatically in email when you start typing the address of who you want to send an email to.