The Playstation Meeting sent pretty strong signals that PS4 won't be a factor in Wii U's successes or failures. The Wii U doesn't necessarily look better after last night since it has a pretty long list of problems at the moment, but it certainly doesn't look worse and Sony isn't going to be a contributing factor to its demise.
Remember Vita's super strong showing at it's first E3 and how the 3DS seemed to be in a pretty bad spot, but then Vita shows up at the following TGS and essentially craps the bed? The Playstation Meeting was more the TGS show than the E3 one; we got sequels no one wants (Killzone), new IPs without a target audience (Knack, aimed squarely at children who can't afford a $500 console), and multiplats (Watch Dogs, the generally agreed upon "game of the show" will be on literally everything). The PS4 lacks any coherency; it's got features for seemingly no reason other than to check boxes. Why is that touch pad there? It wasn't shown even once as far as I remember. How do you even use it while holding it? They "built the system around remote play" but it requires a Vita so it will literally never be used? 8GB of memory, sweet! But that only matters if PS4 ends up as the primary platform and not the XB3, which seems like a long shot following this generation.
Then there's the pessimist that says, if this is the best first impression they can make, what happens when the other shoe drops (all the things they don't want to talk about)? Paywalls, required internet connections, price, etc.
Full disclosure: I really want Sony to "win" this coming generation. I don't think Nintendo can pull it off, and Microsoft is a bad influence on the industry. But after tonight I think Nintendo and Sony have misstepped in major ways and the ball is in Microsoft's court.