I'm not sure if someone else has discussed this already but I was thinking that with the iPad 3's rumoured retina display and quad core processor it would be perfect for running apps side by side.
In fact I would go so far to say that Apple is planning on doing this with iOS 6. If this ends up being the case then the original iPad will not get iOS6 due to the 256mb of ram and single core processor.
In fact I would go so far to say that Apple is planning on doing this with iOS 6. If this ends up being the case then the original iPad will not get iOS6 due to the 256mb of ram and single core processor.