Ummm, that's how it's supposed to work. You get that right? Syncing means it keeps copies of everything "in sync". If it doesn't exist on your computer, then it shouldn't be on your iPad. Not sure what this is a difficult concept to understand. If you are concerned about this, then put your itunes on an external drive then when you sync your ipad, all you have to do is have your external drive plugged in or better yet, have a network drive that is your itunes directory, point itunes to it as your itunes media location, and whenever you are home you do a sync via wifi.
Edit: Clarifying. Sync via wifi meaning that you still hook your ipad via cable to your MBA, but all the data is housed else where and is transmitted to your MBA via wifi.
Ummmmm, I know exactly what syncing means, BUT you should be able to add music to it without syncing apps. Get what I'm saying. I don't want to "sync" I just want to add some music to it. Thats all. But it's forcing me to sync apps even with syncing apps not checked.
- I open iTunes and click on my iPad.
- I go to each tab (app,music,etc) and uncheck the sync button
- It totally wipes my iPad because I guess you can't break the sync link and keep what you have.

- I turn on manually manage music, then yes it does let me add music without removing apps.
- I download 1 app on my iPad (View client)
- Plug back into the computer, go to the Music tab and check Sync Music.
- Hit apply.....it copies the app I just download to my computer even though I didn't touch the Apps tab or tell it to "Sync Apps"
- No big deal, I delete the app from my computer. Then plug my iPad back in and go to the Music tab. I check an album and tell it to sync....it then warns me it's going to remove the View app from iPad because it's not in my library.
So, you can't sync music without having to sync apps. Just dumb. It syncs apps even though you tell it not to sync apps, that's not how it "should" work.
I guess I'll just stick with syncing nothing at all and just manually adding music.
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If it doesn't exist on your computer, then it shouldn't be on your iPad. Not sure what this is a difficult concept to understand.
What exactly do you mean by that? The way I see it if it can't run on your computer than it shouldn't be on your computer. What's the point in having 20 GBs worth of something that you can't open or do anything with. And you can only sync with one computer!!!! I want to sync with my Air, and I'm not buying or lugging around an external drive just because won't let me choose what to sync. It would be great if I could sync music with my laptop, but sync apps with my desktop that has lots of space. But Apple refuses to let you sync with more than one computer in their fear that you're going to pirate something.
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Is your iPad set to manually manage music and videos?
That was the ticket, thanks! I had to disable ALL syncing and just manually manage music.