I've been following this thread for a while and wanted to post my own experience. Installed mine tonight and everything works perfectly on my 3/08 production E90 M3.
First, MANY Thanks to Dan @ United. I ordered my console and controller Friday 10/23 and recieved them today 10/28. Super fast shipping and responded quickly to my PM asking about inventory - thanks Dan!!
I had my software updated last month when my amp was replaced. Part numbers installed are 65-82-9-213-309 (controller) and 51-16-7-903-960 (console). Everything went without a hitch (in large part to the OPs pics) and the new controller unit is SO much easier to use. Highly recommended mod!