Can I sync my ipad with my wifes itunes and download her apps in addition to mine?

Question

I would like to add applications from my itunes and my wifes itunes account to my ipad 2.  Is that possible?

Answer 1

Contrary to the 2 above comments, iTunes content acquired from the iTunes Store can be shared with 5 other authorized computers. You may only sync an iOS device to one iTunes account, but you can share the content acquired by one iTunes Store account with other iOS devices.
The first thing that you and your wife need to do is to open iTunes and go to Preferences/Devices and check the box for Prevent iPods, iPhones and iPads from syncing automatically. Now you have control of your iOS device when it is connected to the other's account.
If you want the apps from your wife's iPad, connect the iPad to the computer and iTunes app to which you sync your iPad. Control click or right click her iPad's name in the iTunes devices list in the left column and choose Transfer Purchases. All purchased iTunes content on her iPad will by transfered to your iTunes account. After the transfer is complete, detatch her iPad and go to Authrize This Computer in the iTunes Store menu. Enter her Apple ID and password for her iTunes Store account and Authorize. Now all of her content is available to you and any iOS device which you sync to your iTunes account. You can do the same in reverse with your iPad for her.
The one thing to remember is that these are still her apps or your apps. So these apps can only be updated with the account that acquired them. If you open iTunes and see that there are apps with updates, to update your apps log into your iTunes Store account. To update her apps, log into her iTunes Store account. If you see apps to update but after logging into your iTunes Store account you are told there are no updates for you, then you know that the apps that have updates are hers.