There is an excellent interview over at Totalvideogames with FIFA Street 3 producer Joe Nickolls. It goes into great detail on many aspects of the game from the technical side (such as using the NBA Street: Homecourt engine and using the AI from the FIFA series) to talking about many of the game modes and how it can be compared to the previous FIFA Street games. You can check out the full interview here.
Various media sites have also posted up their hands-on impressions which are a little more general but come from a different perspective. 1Up, Gamespot, and IGN all posted up their initial previews.
I have submitted some questions of my own and hope to hear back on those soon as well.