Find my iPhone (doesn't work with iPod)

I know it's kind of obvious, but this is what ended up being my problem: Settings > Mail, Contacts, Calendars -- make sure you are logged into your me.com account. I thought I was, but when I went in there, the password field was blank. In the upgrade, it wiped out my login.

 

The feature is called "Find my iPhone" not find my iPod Touch

 

Yes, but it is still a functioning feature for the iPod touch. It waits until the iPod is connected a wifi network to send the message and/or locate it on the map on the MobileMe website.

I've tried it out twice and it works well. If the iPod is not connected at the same moment that you send the message, it will send you an e-mail to tell you that the message was received on the iPod touch. I havent tested wiping the iPod as I don't feel like resyncing all of my data, but I'm sure it works the same way.

 

You have to have Push turned on.