Does anybody here knows when the main net is about to be launch? I mean the DCT platform

Probably, but there is a scenario where they don't do that.

They posted on their blog: "All funds will go directly into Coinbase 2-of-3 multi-signature vault. Meaning that, in order to withdraw the funds, 2 out of three signees need to agree on it."

When I read "directly", I interpreted we will send it directly. But, considering the "final testing" thing, we are probably going to see a more sophisticated method, hopefully. Then you would be able to send from exchanges.