Now it seems he has been released from his contract at Cardiff (which had a year to go) and is a free agent.
Gills chairman Paul Scally told KentOnline: "We have put a proposition to Darren and he is considering it.
"It was difficult for him to remove himself from Cardiff but he has now done that and we are in discussions with him.
"We would like to think he will come here but he has other opportunities as well. He will obviously do what is right for him."