(I was going to post this in the ps4-offtopic thread but it seems that thread is based on the system itself)
Is Knack a platformer like Little Big Planet or is it Action and Adventure like Uncharted? Because the gameplay that they showed at the reveal event varied. For example the vita and ps4 gameplay was oriiginally like litte big planet where they showed it and then switched it to vita.
However, there were parts in the reveal where they were showing off the social features of ps4 like streaming to friends and the new profile where you upload gameplay, and you could see Knack moving around on a level punching things..
It looks like it's going to be like a Crash Bandicoot game to me. As far as genre goes, I guess you could say that it'll fall under the Action/Adventure category.
The stream cut out on me when Knack was shown and I haven't followed up on seeing it action but I kind of assumed that it was more in the leagues of Crash too. Sony trying out something other than Ratchet in this genre for a new gen (a new proper Ape Escape wouldn't hurt either).