iSyncr and DoubleTwist both have a wifi sync option. Both you have to pay for though. I prefer iSyncr and use it all the time. If you can't mount as a drive you will need to use some sort of wifi sync I believe.
This is way late for the above post but I was having the same problem just now. Use the software that comes with it called Kies. Go on samsungs website or google it, you should find it no problem. You can add your itunes folder, movies, etc, etc. Works great. Also, in the wifi menu on the tablet there should be a Wifi Kies option so you can sync wirelessly. Hope this helps someone out.
Just use Google music. You can set the music manager desktop tool to auto upload itunes music to your Google account. Then you can access on any android device as well as make available offline on multiple devices. No plugging in or syncing neccessary .