Well.. I have been following this since I signed it a while back and it shows closed with 2282 signatures..
Have they responded back to CH about allowing trainers and cheat codes for singleplayer games yet?
I am going to contact them to say I want to use a trainer for my Batman Arkham City game and my Deus Ex HR game to see what they tell me. I will post back to you what their response is.
Keep the fingers crossed!