Better product doesnt necessarily mean 3D Screen. Might be something "revolutionary" like this: http://www.scentsciences.com/products.html.Well the funny thing is, announcing the product now but with an unknown release date could indicate that Sony have sourced a 3D screen and are working to release with one. Why else would they announce the details of their product just before the release of the 3DS if not to say to people 'wait for us, we have a better product'? I doubt it would actually make sense to just come out with 'we have PS3 graphics on a handheld' unless they truly haven't learnt anything from this generation.
I mean just imagine how pathetic Nintendogs would look vs Sonydogs with authentic smell during walks. Or how the social aspect of gaming is raised to new heights, now everyone in the room will instantly know if you are with the orcs, humans or transgender fairies in "World of Playcraft" - without even looking at you.
Just throw alot of hype at it and it will sell... atleast thats what I learned from this generation.