My IPod Nano is synched to my ITunes library, but when I click on the Device name, all of the music is "grayed out" and I can't click on anything.

In order for this content to not appear grayed out, you need to enable the Manually manage music option from under the iPod's Summary tab in iTunes. Keep in minding that manually managing your iPod's contents is different from having content automatically sync to your device from iTunes. See here for more information.

Managing content manually on iPhone, iPad, and iPod

B-rock

I'm having the same problem with my iphone.

I tried this and it gives me the choice to erase my phone to sync with another itunes library. I don't want to erase my phone I just want to be able to manage my apps.

There is no way to manually manage your apps. You will be able to re-arrange your apps if you connect it to the

iTunes library you normally sync it with.

http://support.apple.com/kb/HT1977

B-rock