It's actually very easy to contribute to the design process. Especially for this entire redesign. It was announced right from the start on the website / blog, t

It's actually very easy to contribute to the design process. Especially for this entire redesign. It was announced right from the start on the website / blog, the mentioned Visual Design Group website was put up, they created a subforum for design discussion and input (very active and so easy that even I, a non-designer, was able to participate), and they regularly posted detailed updates on the design process asking for feedback (sometimes in the form of polls). So I'm not quite sure how much easier you are expecting the process to be.