can i switch id's on my ipad at any time

[andreak]

for instance to get apps i bought through another id. or say if i want to facetime my wife who happens to share the same id as me

 

[scifan57]

for instance to get apps i bought through another id. or say if i want to facetime my wife who happens to share the same id as me

If you go to Settings>iTunes & App Store and tap on your Apple ID at the top of the page, you can sign out of your account. To sign in with your other Apple ID, go to bottom of the featured page in the App Store and tap the sign in button. From the resulting pop up you can choose to sign in with an existing Apple ID. Enter the details of your other Apple ID and sign in. You can now also FaceTime your wife, who shares your primary Apple ID.

You just follow the same steps whenever you want to change Apple ID's.

 

[twerppoet]

As far as FaceTime and Messages go, you can have different iCloud accounts on your iPad's while still keeping the same Apple ID for your purchases. While it is normal to use the same Apple ID for both, it's not required. Doing this also lets you have different calendars, email, and all the other iCloud services; as well as giving each iPad it's own 5GB of iCloud storage.