More than one iPad on one computer / temporary connection My wife uses her iPad (first generation) a lot, but never syncs with her laptop.

So she never updated to IOS 5, because she never got a message to do so. 

Her laptop is gone. I would like to update her iTunes and install IOS 5. But my computer has the existing partnership with my iPad.

Can I plug her iPad into my computer, without synching, for only the purpose of downloading and installing updated iTunes and IOS 5 on her iPad?
It is possible to sync several iOS devices to the same computer account. I do it all the time with an iPhone and an iPad, it will also work with two iPads.