Yeah, I don't think Microsoft could compete with that kind of bundle. Hope it's true....
If the rumours are to be believed, Sony plans to release a bundle which includes the PS4 and Sony's handheld console, the PS Vita, priced at $500.
Inside Gaming Daily have released a video in which they claim that an inside source has confirmed that the bundle will be released before the end of the year.
If they used servers to run the game and stream it to the Vita via Wifi/4G. I would see it being worth it. However I have a strong feeling you will need to connect to the PS4 via Adhoc(Just like PSP/PS3), which is dumb, because I would rather just sit on my couch and play with the controller.