According to a Q3 investor document from ASUS, they have listed their new Transformer Prime as coming November 9. Unfortunately we don’t know if that’s a release date or when it will be officially announced, but I am expecting the latter. We have already seen the keyboard dock leak so we are definitely close.
You will also notice that they have confirmed Ice Cream Sandwich and a Quad-core processor which is the Tegra 3. They also mention two other devices scheduled for Q1 2012. Could that be the Padfone and a followup to the Slider?