A new Madden 09 producer blog and corresponding video have been posted, this one going over the new tackling engine and animations. You can read the full blog posting here.
With this brand new system (created in a collaborative effort between NCAA Football and Madden NFL), you will see unprecedented fluidity in multi-character interaction, which generates much better results across the board: improved blocking, improved chucks, better handoffs, interactive celebrations with teammates, and even friendly player avoidance and help-ups in post-play. In NCAA you will see pursuit physics specific to wide open gameplay and interactive celebrating with mascots. In Madden you will be manually breaking tackles, adding far better response and control as well as more depth to tackling, which is quite fun. None of this could be possible without this new engine.
Click here to watch the video on the official Madden website.